I realize you can't just say, "blacks are terrible etc etc etc". I get that. But I guarantee you 75% of the American black population feels the same way these looneys do - they just don't say it, or act on it. But if it came down to choosing a side, they'd be on the other one.
Same with the muslims. I realize most of them just want to make a living and live their lives, but only a very small percentage of them would truly denouce what ISIS is doing.