> he’s now marked for life, and there's no do-over.

sincere apologies, show of remorse, and substantially + genuinely changing the toxic behaviors goes a long way. there are several celebrities who have done "unforgivable" things and yet been forgiven by the public. the problem is that the kind of person liable to make such remarks is not the kind of person likely to do some introspection to realize they're being a terrible person.