Good, it was his own stupidity.
The respectable thing to do would have been to own it, and say he used to be an ******* and he's grown, he's a different person and he now fully supports the LGBT community and that he's deleted the tweets and apologise for any offense caused. That's the classy proper way to handle it.
His answer was "everyone just wants to be offended, y'all killing my good vibes, i'm ignoring you" which goes down as well as you'd expect. I imagine he got a phone call saying he needs to quit or he will be fired because the Oscars does not want to be associated with him.
So he brought it on himself, also have people not learned by now to delete your old tweets if you've got a twitter account with a lot of years on it? Jeez.