An aggressively performative focus on social justice.
In other words, it's people being prigs about social justice. And that's the real problem — the performativeness, not the social justice.It's not performative. We really do believe that there are injustices and that if we can begin by changing the language, we can change the behaviour.
Just because Paul Graham can't imagine himself sincerely believing in self improvement followed by social improvement doesn't mean we don't believe it in ourselves.
A perfect example is when gay marriage was illegal and some straight people loudly announced that they wouldn't get married until gay people could.
OK. Your motives are good but how exactly is this going to help legalize gay marriage? And why did the world need to know about it?
I think a better analogy is people who would criticize other heterosexual couples for getting married when homosexual couples could not, as it is both pointless and needlessly antagonistic.