I'm 1/4 Jewish, I've attended Lutheran schooling for my entire life, yet it doesnt make me feel uncomfortable. Maybe its because im past the whole "OHMYGOSH ITS A GUY WITH A TURBAN! TERRORIST" that you seem to be at.

Just as Monk said, you generalised.

Would you take everything the Old Testament said to heart? Everything was relevant a long time ago, times change.

If you take the line of anything in print is true, then Christianity supports slavery. It doesnt in reality, but you could say and provide evidence that it does.