Can you back that up? My impressions is that mob persecution of unpopular groups typically only makes them stronger and more comitted (as long as you don't perform outright genocide against the group, of course).
Anyway, you jump from disagreement with a viewpoint (criminal nature of blacks, creationism) to the conclusion that a group is "poisonous" and deserves any kind of random harassment and persecution from the anonymous mob. I don't know what this line of thought is called in English, but I don't think it is something nice. If I happen to disagree with your line of thought (and indeed find it dangerous to society), would that make it okay for me to throw rocks through your windows in the middle of the night?
(Just read your profile: "Part of the cancer that is killing Hacker News". I suspect I have been trolled. This is why we cant have nice things.)