Indo-European genes and language stretch from Western Europe to Sri Lanka. They were an early horse-people, that used their nomadic technologies like horse-riding, wagons, and chariots to dominate far in different directions. Genetically, their male lines spread far by dominate men having children with many women.
Islamic sacred writings were written hundreds of years after the life of Muhammad, and Muhammad claimed to have received revelations from God that conveniently allowed him to do things that were politically expedient for him, and would change as his political needs changed.
“Islam is a militaristic political system that preaches the subjugation of all of humanity and their submission to Allah who created all humans just so they worship him”
Germany, Japan, and Iran are great societies. But, after Germany and Japan were taken over by barbaric regimes, bringing them back into the civilized world required burning those countries to the ground. The same might be required for Iran.
The Bible isn’t one book. It is a bunch of books put together. If we really want to understand it, we should try to understand what each author was saying.