You shouldn't be too concerned about those vile comments. They are expected from those morons. If they had they way, America will all be blondes.
The comments I find disturbing are those from quiet middle class folks who have expressed resentment from perceived ills from illegal immigrants. A couple of years ago, I was shocked to hear very negative comments about how illegal immigration has harmed America from folks I did not expect to hear from. These folks are probably the nicest and and kind hearted people I have ever met in my life. They taught me a great deal about the evils of racism but somehow, illegal immigration has rubbed them the wrong way. Go figure.