"The Turkish Ottomans were Sunni"

Yes, I confused them with the Safavids.  That being said, the main point about their persecution of what they deemed heretical sects still stands.  How did they treat the Ismailis? Alawites? Druze?  Selim's war against the Safavids was largely on sectarian grounds, and he openly persecuted the Shia Alevis.

"The Berbers may have terrorized the North Africans, but were not the primary Muslim Empire" 

What's 'primary'?  They rebelled consistently against the Rashidun and early Fatamids, converted, and then it's a slow rise to power during the Umayyad caliphate until they founded the fundamentalist Alomohad and Almoravid dynasties that cemented all of northern Africa, from Marrakesh to Cairo, and including southern Spain. They took 1/2 of the entire Umayyad territory from them. The point is, obviously, that there were millions of Muslims, of differing sects and tribal origins, and only SOME of them were tolerant.