This is perfectly demonstrated by the fact you did not comment on the original post, but instead commented on the post, criticizing the original post, which then you criticize, making you the exact same hypocrite that you excoriate.
Actually I (we) don't ban people for political speech we disagree with. Politically passionate people assume we do, but this is an illusion (a total illusion, in fact). Everyone is certain that the mods must be against them—this is a reflexive bias (no doubt hard-wired in all of us somehow) and everyone always interprets it to be against them, their tribe, their team, their side. Even their country. We got accused of being anti-British not long ago!
It's easy to assume one was manually blocked when you go to use a site for the first time one day and you're not allowed to post. Doesn't require any self-centeredness, it's just the simplest answer. "Huh, I was banned... but why?"
Because they're white and male? Get your philosophy in order. If you're against bigotry, then you ought to be against prejudice against all groups or you're just a garden variety, man-hating hypocrite.