Hey, sorry you're getting so much crap about your thread! Honestly, most of those people have no connection to either culture and don't understand what they're talking about. I converted to Islam from a Catholic family and am marrying an Arab Muslim man. It took about 2 years to get our families on board with this, and there's still a ton of tension about religious differences among the extended family.

I'm taking a class about Islamic history, and we recently saw a film about the Spanish Inquisition, where the narrator was very enthusiastically showcasing of statues and paintings that depicted graphic violence against Muslims. Yes, it felt very uncomfortable and somewhat personal, even though I have no connection to the Moors other than religion. I think that's because the modern tensions between the two cultures and religions make that a relevant issue, but just a memory of the past.

However, that being said, I would just talk to your fiance ahead of time and warn him. My family is SO sensitive about these things (think "you're not drinking on New Years?? Stop imposing your religion on us!!) and drawing attention to differences only makes things worse. Yes, it's culturally insensitive to have that depiction in his house, but the other option is seriously threatening your relationship with your family. My family says crazy racist and islamiphobic stuff all the time, and we just leave the room when it begins. It sucks, but it's really the only option if you want to maintain good relationships.