lol, dude, it is way to easy to assume that you know the meaning of what something says and no one else does. I mean, it's foolish, but easy. I won't doubt your intelligence, but your common sense, well, i'm doubting it. I mean, do you really think anyone gives a crap if you can read hebrew and greek? Their point, which you so gladly ignore, is that many read and believe in this oh so f'ed book, as you say. Honestly, you sound like an elitist, like anyone who reads and believes in any bible that wasn't written in hebrew or greek is a fool. Which is only your opinion, but eh, we get lots of opinions, so this isn't new.
As for the question, are blacks responsible for crime, and muslims responsible for terrorism, i would say as a whole, no. But, here is the problem, you are taking what they said, completely out of context. They even restated it, when you called them on it. It is not necesarilly christians in specific, it is simply a group, who happen to be christians. Which means that a GROUP of christians act this way. Hence, a GROUP of blacks commit crime, a GROUP of muslims are terrorists. It's kind of a specific generalization. Most christians don't even believe in witches, well in the sense that they can actually cast magic or are possessed anyway.
Don't assume that someone's opinion is dumb, until you've taken the time to actually think about it.