Vetivert, yes I've heard about the Spanish inquisition, and know that Christianity has been far from perfect (and I have my reservations about religion and the way it's used anyway) but within the context of the discussion, and without splitting hairs, it was perfectly reasonable to have said that "It's pretty obvious to me that Western culture is superior to Islamic culture..."
Yes, religion and cultures are fluid, yes we can look back in history and see examples that contradict the statement in the last paragraph, but we are talking here and now, and as a generalisation, too. In that respect the statement is sound. It's not saying all Muslims, or indeed any, Muslims are inferior. Or, that we, as Westerners, are superior. Merely, it's comparing the two ways of living. It accepts that there are deficits on both sides, but answers the question: where would you rather live? Where would any person, properly availed of the facts, live?