Well it's all been said on this topic this week but maybe I can add something that has not been said already.

It is true that when arsenal fans call spurs **** they are generally doing it because spurs fans call themselves the ****. As such there is probably no bad intentions at the outset. However ...

Mate, you're replying in agreement to a post about bigotry and ignorance and you come out with a comment like that. "80% of all working class....racist and thick"

You probably don't see it but you're just as bad as the people this article takes issue with.