There's a word to describe anyone who still uses Twitter by choice (and isn't from a marginalised community): Complicit.

I never used twitter but why did you make an expetion for marginalised people

If Twitter were a store, people would have no problem boycotting it. I think the mentality change that is necessary for the 2020s is that you have a choice where to "spend" your generated content, just like you have a choice where to spend your money (ostensibly at least: ISPs, privatized utilities need not apply).