It depends on what portion of the life of Mohammed you are focusing your understanding of Islam on. He is the perfect example and yet he was a pedophile slave trading sex trafficking highwayman who believed black slaves were worth less than others, at one point he was very spiritual and that’s where people point and say look this is Islam but leave the slave trading racist global jihadist caliphate pedophile superiority out of it. Most people just go along with the rest of culture and the masses and don't ask questions. The masons point to bbqs and fundraisers to say look that’s what we’re all about. 

Gang rape and sex trafficking of young women and children is currently taking place at an unprecedented rate in the uk and Europe. The common denominator in that equation in those areas is the flood of Islamic men. They literally created no go zones all over Europe because of the violence and rape towards anyone not Muslim within these free housing migrant communities in Europe.

Sharia law and how to address its imposition over those areas they conquer within foreign lands is another problem and debate that should be addressed as well when contemplating islams compatibility with other cultures.

Just acknowledging the elephant in the room concerning the reality of historic events and facts concerning Islam, Muslims and sharia law.

If the constitution doesn’t supersede their cultural norms and imposed laws then allowing them to take over neighborhoods may not be in our best interest.

Does a moslem denounce Muhammad or just say I only believe in some of what he did? For a culture that will kill you if you leave, telling outsiders the latter may be, in their view, their best option.