Maybe instead of attacking the concept of representation in film, we should criticize lazy writing. White, straight and cisgender stories are allowed to be as bad as they are without accusing them of them forcing their "identity politics" on us but when it has a black, female or gay character, we blame the very fact that they are there for the film failing.

Having diversity/representation and having a great story are not mutually exclusive. In fact, I think the issue is that often these works are created by people who don't actually represent those communities and do not understand how those very communities do themselves want good stories that also include them in it.