A big problem with Islam is the arabization aspect. It is an arabian centric religion. Bosnian muslims are actually very well behaved, along with central asian muslims. Some muslims from the caucasus are ok, however Chechens are notorious for being bad actors. Turks can be pretty well behaved as well, except those in Germany from what I have heard. Although if you call a Turk an arab, you will get chewed out in their wacky language. The arab identity is a big part of islam. You are supposed to read the quran in arabic, and pray in arabic, otherwise "allah" will not hear your prayer. Much of these non arab muslims can read arabic but they have no idea what they are even saying.
The levant was mostly arabized. Even Christians of the region speak Arabic and read the bible in Arabic. Christian Arabs will also say "Allah" for God, however I have always disagreed with that, because allah is actually a pagan god from arabia. Pagan Arabs of the hijaz (modern day saudi arabia) worshipped hundreds of gods. Muhammed picked his favorite one and rolled with it.
The levant adopted arabization combined with islamization and I believe it was the downfall of the region. The language differs quite a bit from hijazi arabs, and some of the ancient levantine culture and cuisine was maintained, but the arab identity is strong.
The muslims who resisted arabization are typically far more well behaved than those who did not.