That's not what I'm saying at all.
I'm just saying people will find new things to be dicks to each other about. Sure, we should strive for tolerance, but we also face the risk of a sort of "white list" of things we're supposed to tolerate, and if you're not on that list, people are free to be a asshole to you.
I've seen that already with e.g. a college professor I had who's all high and mighty about LGBT, race, sexism, but he acts like a total asshole and belittles students in his class based on basically any identity trait he can that aren't on the list (e.g. ridiculing peoples subculture identity in front of the whole class, because subculture isn't a "protected" trait). e.g. this guy's clearly a total asshole, but he hides behind a self-righteousness facade, which is entirely based on doctrinal stuff, and not based on generally trying to be a nice person. I mean, no you don't get to call yourself "tolerant" because you support safe-spaces / trigger warnings for LGBT, race and gender, but then mock people about how they dress or what music they listen to, if it's some other minority that's not one of those things.
So what I'm saying is I've seen very rude and divisive behavior from people who pay lip service to a sort of minimum-spec tolerance, then pat themselves on the back for being better than everyone else. It makes me think we might well stamp out racism but different types of xenophobia / intolerance replace them. We see that from both right and left wing types too. Think about the frothing levels of hate between liberals and conservatives. As blacks have become mainstream, and even most educated conservatives wouldn't dream of publicly attacking black people, then you see the same or worse sort of hatred shift to a different identity trait. Except this time, it's two-sided, because political opinion isn't a protected trait we're supposed to be tolerant about. e.g. intolerance can flow freely from both right and left, as long as it's not on "the list" of things which it is taboo not to tolerate.