Ah yes, but theirs is a righteous racism. The -ism itself isn't bad, no, only the context of it can be. If it's used by white people against any other group then it's the epitome of evil. If it's used by any group against white people, then it's a just comeuppance for our ancestors' crimes (i.e., they didn't sit about in the muck navel gazing like so many of the protected classes ancestors did, and continue to do).