Hmm. I had a quick flick back through Twitter (I try to stay away from Twitter as much as possible) and can see how he's become more outspoken. I'm not sure he's said anything worthy of condemnation though. Disagreement, yes, but hatred, no. Maybe there's some tweets I've missed though.
Obviously, you disagree with him. But I guess the counter-argument is that he is reacting against the fact that people found the joke offensive in the first place and so is doubling down on his position. It's the (reasonable) opposing view that rational debate is being threatened by the reaction to anything which disagrees with an opinion voiced by an "unprivileged" group as being somehow -phobic, bigoted or hateful, or the views of cisgender, heterosexual white men as being invalid at the point of origin unless they first acknowledge the importance of their identity in their viewpoint.
I don't see how there is any way forward without being moderate. As things stand, both sides are getting more extreme and that is what is most worrying to me. I fear we will end up with those alienated by the "offense culture" (I'm using scare quotes deliberately as I know there's not a neutral phrase I can use here (unless you can correct me, would be happy to be corrected) getting all of their news and commentary from Breitbart and becoming steadfastly against social justice, while the opposing side ignores valid cultural criticism simply because it involves underprivileged groups.
It's this divide which is leading to Brexit, Trump and potentially Le Pen and Wilders. Here in the UK it's led to Jeremy Corbyn which has led to an ineffectual Labour party which has led to a dominant conservatism which means I see more people sleeping rough every day, more teenagers I work with being unable to access mental health care and social care and less job security than I can remember. Without moderation and points of compromise, progress is impossible.