Most people think that Israel is Iran's biggest enemy. They are wrong.
Israel is simply a way for the ayatollahs to enter the “hall of fame” of the wider Muslim world, just like Gamal Abdel Nasser of Egypt did in the 1960s.
The best way to gather the support of many, Muslims and non-Muslims alike, is to become a leading power in spreading hatred towards Jews and attempting to eliminate them.
However, Iran's goal isn't Jerusalem; it's Mecca. The Sunni world in general, and the Kingdom of Saudi Arabia in particular, are the holy grail for the Shias.
The Shia-Sunni conflict traces back to the early days of Islam when, after the death of the Prophet Muhammad in 632 AD, a dispute arose over his successor. Sunnis, the majority branch, supported the election of a caliph, leading to the selection of Abu Bakr, while the Shia believed the leadership should stay within Muhammad's family, specifically with Ali, his cousin and son-in-law. This schism has evolved into broader theological, political, and cultural differences over centuries.
The journey of the Islamic Republic of Iran to reach its goal began in the 1980s with the creation of a corridor via Iraq, Syria, and Lebanon towards the Mediterranean Sea, then to Yemen, and according to their plan - Jordan is next. Qatar is already in their pocket, and now they eye the Gulf states such as the UAE, Bahrain, and Oman.
Israel isn't the target but merely a means to an end.
Toppling the ayatollahs' regime would save the oppressed Iranian people, bring great relief to the Saudis, stabilize the region, and serve as a death sentence to the proxies in Iraq, Syria, Lebanon, and Yemen, potentially causing Qatar to stop funding Hamas.
Biblically, Persia will join the future coalition against Israel in Ezekiel 38. The question that remains is: will it be during this regime of ayatollahs or another one that might replace it?