Look, I think there's room for nuance. I agree with most of the specific examples you pointed out, and generally agree that big blockbuster films / network television shows are trash, for more reasons than just the recent diversity push. I 100% agree that token black / token gay characters are problematic.

My idea of representation is: Let people with interesting stories tell their stories. Modern audiences don't really care if the protagonist looks like them, so let's push for interesting stories rather than a specific character archetype. Invite writers of all backgrounds to the table, and allow their experiences to shape the story.