Srry for bothering, but could you elaborate on what you mean with enforcing performative political correctness. Esp the performance part. Do you mean that people just repeat without understanding? Then is ‘political correctness’ really the right word

What I meant is that middle class people often measure ‘not being a bigot’ in terms of which words people use, which theories and writers they are aware of, etc. They perform their anti-racism, anti-sexism, anti-homophobia etc but they live in all-white all-middle-class filter bubbles and they ignore a lot of deeply bigotted and exclusionary behaviour as long as everyone uses the right language. They care more about whether people perform open-mindedness and non-bigotted etiquette than whether people are truly open-minded and not bigotted. 

Then there are working class people who share communities that are a hell of a lot more diverse than the middle class filer bubble, who often bother a lot less with using all the right language and a lot more with the very simple acts of treating people like they belong and supporting each other through hard times. 

So someone can use words like transsexual and sex change and make loud jokes about my new penis and still accept and support me a hell of a lot more for who I really am, in ways that are a hell of a lot more real than the subtle middle class artist who knows all the right language and treats me by-the-book but just wants to use me because it’s hip to have transgender people in your art project now-a-days.