I'm pretty sure that saying black people are more violent and more stupid than white people counts as racism, doesn't it? (from Zaklog)
I'm also pretty sure that saying gays have a mental disorder and must be treated while simultaneously not giving any examples of how gayness is dangerous counts as homophobia. (from Timber1972)
And then there is you. Correct me if I'm wrong, but I think that you were saying that masks are useless (it might have been Timber1972)
There is also Gorthaur (he left a while ago) who openly said that they would like to be a Nazi.
Finally there is Incognitoguy, who, to be fair, can actually form proper political arguments (though not very good ones)
Most of the others are fairly respectful and are willing to compromise.