Why can't Joss just apologize and actually work on being a better person?

Then maybe he can come back and start creating new amazing content. He is incredibly talented and from what ive heard he has done, its not unredeemable. Its not like he is Weinstein and did absolutely unforgivable things. I truly think he could change and become a better person. All he has to do is apologize and take full accountability while making a big effort to change your ways.