In cases like this an immediate apology won't work, especially for something that happened over the course of years or decades and not a one-time thing. It would just come off as trying to save his career by mouthing the right words, nobody would believe it, and it would just be met with mockery.
After a few years in exile, keeping very quiet and not adding any more fuel to the fire, he might be able to claim that he's changed and it might work if the injured parties agree to forgive him. But not right now.