Having diverse characters in fiction can also help traditionally privileged people too, like white men. Maybe we’d have less sexism and racism if we expose people to this early.
Doctor Who had been diverse, it had characters that were black, women, gay, it even had two black female characters.
Look, I don’t think you’re being a sexist pig. I think you’re just extremely rigid in your thinking and the fact that you can’t accept a fictional character changing is the problem.
Captain Katherine Janeway is a fiction character. Do you think there wouldn’t be complaints from the feminist if they did a reboot and made Janeway a man? Do you think there wouldn’t be complaints from the NAACP if they reboot DS9 and cast a white guy as Sisko? Do you think I can describe men as being “sidelined” by them choosing a women for the next Doctor.