What's wrong with idolatry?
10 Commandments
לֹֽ֣א תַֽעֲשֶׂ֨ה־לְךָ֥֣ פֶ֣֙סֶל֙ ׀ וְכָל־תְּמוּנָ֡֔ה אֲשֶׁ֤֣ר בַּשָּׁמַ֣֙יִם֙ ׀ מִמַּ֡֔עַל וַֽאֲשֶׁ֥ר֩ בָּאָ֖֨רֶץ מִתַָּ֑֜חַת וַאֲשֶׁ֥֣ר בַּמַּ֖֣יִם ׀ מִתַּ֥֣חַת לָאָֽ֗רֶץ

You shall not make for yourself a sculptured image, or any likeness of what is in the heavens above, or on the earth below, or in the waters under the earth.

Noahide Laws

אמר אביי ת"ש שבע מצות נצטוו בני נח ואם איתא תמני הויין א"ל רבא אינהו וכל אבזרייהו

Abaye says: Come and hear an answer to this question from a baraita in which it was taught: Descendants of Noah were commanded to observe seven mitzvot: To establish courts of law, to refrain from cursing God, idol worship, adultery, bloodshed, robbery, and from eating the limb of a living animal.

Story Time
ורב יהודה אמר זו אשה ושבעה בניה אתיוהו קמא לקמיה דקיסר אמרו ליה פלח לעבודת כוכבים אמר להו כתוב בתורה (שמות כ, ב) אנכי ה' אלהיך אפקוהו וקטלוהו
And Rav Yehuda said: This verse applies to the woman and her seven sons who died as martyrs for the sake of the sanctification of God’s name. The incident occurred as follows: They brought in the first of the woman’s sons before the emperor and said to him: Worship the idol. He said to them: I cannot do so, as it is written in the Torah: “I am the Lord your God” (Exodus 20:2). They immediately took him out and killed him.
What G-d says about Idolatry
כִּ֤י יְבִֽיאֲךָ֙ יְהוָ֣ה אֱלֹהֶ֔יךָ אֶל־הָאָ֕רֶץ אֲשֶׁר־אַתָּ֥ה בָא־שָׁ֖מָּה לְרִשְׁתָּ֑הּ וְנָשַׁ֣ל גּֽוֹיִם־רַבִּ֣ים ׀ מִפָּנֶ֡יךָ הַֽחִתִּי֩ וְהַגִּרְגָּשִׁ֨י וְהָאֱמֹרִ֜י וְהַכְּנַעֲנִ֣י וְהַפְּרִזִּ֗י וְהַֽחִוִּי֙ וְהַיְבוּסִ֔י שִׁבְעָ֣ה גוֹיִ֔ם רַבִּ֥ים וַעֲצוּמִ֖ים מִמֶּֽךָּ׃

When the LORD your God brings you to the land that you are about to enter and possess, and He dislodges many nations before you—the Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites, seven nations much larger than you—

וּנְתָנָ֞ם יְהוָ֧ה אֱלֹהֶ֛יךָ לְפָנֶ֖יךָ וְהִכִּיתָ֑ם הַחֲרֵ֤ם תַּחֲרִים֙ אֹתָ֔ם לֹא־תִכְרֹ֥ת לָהֶ֛ם בְּרִ֖ית וְלֹ֥א תְחָנֵּֽם׃
and the LORD your God delivers them to you and you defeat them, you must doom them to destruction: grant them no terms and give them no quarter.
כִּֽי־אִם־כֹּ֤ה תַעֲשׂוּ֙ לָהֶ֔ם מִזְבְּחֹתֵיהֶ֣ם תִּתֹּ֔צוּ וּמַצֵּבֹתָ֖ם תְּשַׁבֵּ֑רוּ וַאֲשֵֽׁירֵהֶם֙ תְּגַדֵּע֔וּן וּפְסִילֵיהֶ֖ם תִּשְׂרְפ֥וּן בָּאֵֽשׁ׃
Instead, this is what you shall do to them: you shall tear down their altars, smash their pillars, cut down their sacred posts, and consign their images to the fire.
Why is it so Addictive?
וַיִּקַּ֣ח מִיָּדָ֗ם וַיָּ֤צַר אֹתוֹ֙ בַּחֶ֔רֶט וַֽיַּעֲשֵׂ֖הוּ עֵ֣גֶל מַסֵּכָ֑ה וַיֹּ֣אמְר֔וּ אֵ֤לֶּה אֱלֹהֶ֙יךָ֙ יִשְׂרָאֵ֔ל אֲשֶׁ֥ר הֶעֱל֖וּךָ מֵאֶ֥רֶץ מִצְרָֽיִם׃

This he took from them and cast in a mold, and made it into a molten calf. And they exclaimed, “This is your god, O Israel, who brought you out of the land of Egypt!”

Offending the Lord
וַיַּעַזְב֖וּ אֶת־יְהוָ֑ה וַיַּעַבְד֥וּ לַבַּ֖עַל וְלָעַשְׁתָּרֽוֹת׃

They forsook the LORD and worshiped Baal and the Ashtaroth.

וַיַּעֲשׂ֨וּ בְנֵי־יִשְׂרָאֵ֤ל אֶת־הָרַע֙ בְּעֵינֵ֣י יְהוָ֔ה וַֽיִּשְׁכְּח֖וּ אֶת־יְהוָ֣ה אֱלֹֽהֵיהֶ֑ם וַיַּעַבְד֥וּ אֶת־הַבְּעָלִ֖ים וְאֶת־הָאֲשֵׁרֽוֹת׃

The Israelites did what was offensive to the LORD; they ignored the LORD their God and worshiped the Baalim and the Asheroth.

וַיֹּסִ֙פוּ֙ בְּנֵ֣י יִשְׂרָאֵ֔ל לַעֲשׂ֥וֹת הָרַ֖ע בְּעֵינֵ֣י יְהוָ֑ה וַיְחַזֵּ֨ק יְהוָ֜ה אֶת־עֶגְל֤וֹן מֶֽלֶךְ־מוֹאָב֙ עַל־יִשְׂרָאֵ֔ל עַ֛ל כִּֽי־עָשׂ֥וּ אֶת־הָרַ֖ע בְּעֵינֵ֥י יְהוָֽה׃

the Israelites again did what was offensive to the LORD. And because they did what was offensive to the LORD, the LORD let King Eglon of Moab prevail over Israel.

וַיַּעֲשׂ֧וּ בְנֵי־יִשְׂרָאֵ֛ל הָרַ֖ע בְּעֵינֵ֣י יְהוָ֑ה וַיִּתְּנֵ֧ם יְהוָ֛ה בְּיַד־מִדְיָ֖ן שֶׁ֥בַע שָׁנִֽים׃
Then the Israelites did what was offensive to the LORD, and the LORD delivered them into the hands of the Midianites for seven years.
וַיֹּסִ֣פוּ ׀ בְּנֵ֣י יִשְׂרָאֵ֗ל לַעֲשׂ֣וֹת הָרַע֮ בְּעֵינֵ֣י יְהוָה֒ וַיַּעַבְד֣וּ אֶת־הַבְּעָלִ֣ים וְאֶת־הָעַשְׁתָּר֡וֹת וְאֶת־אֱלֹהֵ֣י אֲרָם֩ וְאֶת־אֱלֹהֵ֨י צִיד֜וֹן וְאֵ֣ת ׀ אֱלֹהֵ֣י מוֹאָ֗ב וְאֵת֙ אֱלֹהֵ֣י בְנֵי־עַמּ֔וֹן וְאֵ֖ת אֱלֹהֵ֣י פְלִשְׁתִּ֑ים וַיַּעַזְב֥וּ אֶת־יְהוָ֖ה וְלֹ֥א עֲבָדֽוּהוּ׃
The Israelites again did what was offensive to the LORD. They served the Baalim and the Ashtaroth, and the gods of Aram, the gods of Sidon, the gods of Moab, the gods of the Ammonites, and the gods of the Philistines; they forsook the LORD and did not serve Him.
אָז֩ יִבְנֶ֨ה שְׁלֹמֹ֜ה בָּמָ֗ה לִכְמוֹשׁ֙ שִׁקֻּ֣ץ מוֹאָ֔ב בָּהָ֕ר אֲשֶׁ֖ר עַל־פְּנֵ֣י יְרוּשָׁלִָ֑ם וּלְמֹ֕לֶךְ שִׁקֻּ֖ץ בְּנֵ֥י עַמּֽוֹן׃
At that time, Solomon built a shrine for Chemosh the abomination of Moab on the hill near Jerusalem, and one for Molech the abomination of the Ammonites.
Molech, Baal, and Ashera
וּבָנ֞וּ אֶת־בָּמ֣וֹת הַבַּ֗עַל לִשְׂרֹ֧ף אֶת־בְּנֵיהֶ֛ם בָּאֵ֖שׁ עֹל֣וֹת לַבָּ֑עַל אֲשֶׁ֤ר לֹֽא־צִוִּ֙יתִי֙ וְלֹ֣א דִבַּ֔רְתִּי וְלֹ֥א עָלְתָ֖ה עַל־לִבִּֽי׃ (פ)

They have built shrines to Baal, to put their children to the fire as burnt offerings to Baal—which I never commanded, never decreed, and which never came to My mind.

וּמִֽזַּרְעֲךָ֥ לֹא־תִתֵּ֖ן לְהַעֲבִ֣יר לַמֹּ֑לֶךְ וְלֹ֧א תְחַלֵּ֛ל אֶת־שֵׁ֥ם אֱלֹהֶ֖יךָ אֲנִ֥י יְהוָֽה׃

You shall not hand over any of your children to be passed through [the worship of] Molech and you shall not defile the Name of your God, I am Adonoy.

וַֽיִּקְרְאוּ֙ בְּק֣וֹל גָּד֔וֹל וַיִּתְגֹּֽדְדוּ֙ כְּמִשְׁפָּטָ֔ם בַּחֲרָב֖וֹת וּבָֽרְמָחִ֑ים עַד־שְׁפָךְ־דָּ֖ם עֲלֵיהֶֽם׃
So they shouted louder, and gashed themselves with knives and spears, according to their practice, until the blood streamed over them.
וַיֵּ֥שֶׁב יִשְׂרָאֵ֖ל בַּשִּׁטִּ֑ים וַיָּ֣חֶל הָעָ֔ם לִזְנ֖וֹת אֶל־בְּנ֥וֹת מוֹאָֽב׃
While Israel was staying at Shittim, the people profaned themselves by whoring with the Moabite women,
וַתִּקְרֶ֣אןָ לָעָ֔ם לְזִבְחֵ֖י אֱלֹהֵיהֶ֑ן וַיֹּ֣אכַל הָעָ֔ם וַיִּֽשְׁתַּחֲוּ֖וּ לֵֽאלֹהֵיהֶֽן׃
who invited the people to the sacrifices for their god. The people partook of them and worshiped that god.
וַיִּצָּ֥מֶד יִשְׂרָאֵ֖ל לְבַ֣עַל פְּע֑וֹר וַיִּֽחַר־אַ֥ף יְהוָ֖ה בְּיִשְׂרָאֵֽל׃

Thus Israel attached itself to Baal-peor, and the LORD was incensed with Israel.

Why does G-d allow Idolatry?

מתני׳ שאלו את הזקנים ברומי אם אין רצונו בעבודת כוכבים למה אינו מבטלה אמרו להן אילו לדבר שאין צורך לעולם בו היו עובדין היה מבטלו הרי הן עובדין לחמה וללבנה ולכוכבים ולמזלות יאבד עולמו מפני השוטים

MISHNA: The gentiles asked the Jewish Sages who were in Rome: If it is not God’s will that people should engage in idol worship, why does He not eliminate it? The Sages said to them: Were people worshipping only objects for which the world has no need, He would eliminate it. But they worship the sun and the moon and the stars and the constellations. Should He destroy His world because of the fools?

Mishnah Torah, Laws of Idolatry and its Statutes 1:1

During the times of Enosh, mankind made a great mistake, and the wise men of that generation gave thoughtless counsel. Enosh himself was one of those who erred.

Their mistake was as follows: They said that G‑d created stars and spheres with which to control the world. He placed them on high and treated them with honor, making them servants who minister before Him. Accordingly, it is fitting to praise and glorify them and to treat them with honor. [They perceived] this to be the will of G‑d, Blessed be He, that they magnify and honor those whom He magnified and honored, just as a king desires that the servants who stand before him be honored. Indeed, doing so is an expression of honor to the king.

After conceiving of this notion, they began to construct temples to the stars and offer sacrifices to them. They would praise and glorify them with words, and prostrate themselves before them, because by doing so they would—according to their false conception—be fulfilling the will of G‑d.

This was the essence of the worship of false gods, and this was the rationale of those who worshipped them. They would not say that there is no other god except for this star

So, why is it so addictive?

Moral Corruption, Justification

Relationship to G-d? -Rav Mike Feuer

How can we refrain today?

Pleonexia, self-worship