Consider: 4Chan - a site dedicated to the dregs of the Internet - exists, and is furthermore an extremely popular and populated site. This is similar in quality, just with a different tangent and a smaller userbase.
It's like r/atheism for racists. (r/acism? Hmm...)
Point bein', there are idiots on the Internet. You can't get rid of 'em, you can't make 'em see reason. All you can do is ignore 'em, and let 'em stew in their own juices.
Trust me, you'll be happier if you do.