I think it's because the people writing these shows are extreme narcissists who are unable to write a character that's not a self-insert. They literally don't have the empathy; empathy isn't putting a trendy flag into your twatter username and whining about how millions of innocent niggers are gunned down every day by those evil white supremacists, it's being able to see things from another person's point of view, and narcissists are incapable of that.

But at the same time, they can't write about themselves the way they really are, because even they know they're horrendous, boring, vile people. Or... maybe they don't know, consciously, but still.

Anyway, what ends up happening is that all the protagonists are mixes between shitty Mary Sue YA protagonists, because that's the only literature these zombies ever read, and cringelord tiktok influencers, and it's why every villain (or every man, because every man is a villain of course) is a laughable caricature. These hacks can't write anything else because of their unending narcissism.

I mean, look at She-Hulk, she's an angsty, bitchy wine aunt, and the writers are the exactly same types of people. Or the Turning Red abortion from Pixar a while back - it was a movie that only appealed to east Asian women who grew up in Toronto in the 90s and practically noone else - because that's who the lead writer was.