Why are the women in most superhero movies so generic?

If I were an actress, I would systematically reject any role where I played the love interest of a superhero. They all have such weak roles. They’re all there to look pretty and get saved and that’s just about it.

I’m sure there’s exceptions, but those roles tend to be a bit shallow. I guess it’s the archtype of “I can’t help myself, I need a man” that I find a little irritating.

I want to see a leading actress that doesn’t need saving in a super hero movie despite the hero’s best attempts.