Seems to me a great way to own up to our problems and set an example is... not do terrible things? Still so much concern for second chances and avoiding consequences and so little concern for not doing or saying stupid or hateful things in the first place.
I’m sorry that there seem to be fewer second chances being handed out (which I don’t think is the case at all, most public figures seem to have no major issues overcoming their first, their second, or even their third major transgressions, especially to their most devout followers). But that’s a consequence of being more aware of what’s no longer appropriate or palatable now. It’s very easy to not be racist. It’s very easy to not be sexist or homophobic. These are not unavoidable puddles in which one must step. There is not - or shouldn’t be - reasonable latitude in these tasks, wherein someone has room to say “look, I’m allowed to be a little bit racist as long as I’m not a lot racist!” To be hateful is not a right nor is it a reasonable demand. And if one is genuinely trying to avoid doing or being these things but still genuinely believes it’s too difficult to avoid the pitfalls (“look, I tried to not be a homophobe, but it was just too difficult to not be homophobic!”), there are any number of individuals belonging to minority, oppressed, or underrepresented demographics who are willing to consult and tell someone what to avoid. That’s known as putting in the work. And if someone is not willing to do any of that, why does the onus fall on the rest of the world to be willing to allow it?
You can only be made aware repeatedly of what easily avoidable mistakes not to make before you’re going to face consequences for still choosing to make those mistakes.