For the hell of it, I just read his memo.
It reads like an educated and reasonable intellectual debate over gender issues. I don't see hate, I see constructive criticism (alas this is not something that certain types of leftists are fond of).
They gave a high functioning autistic coder a diversity gender training seminar. You asked his opinion. He gave his honest opinion which conflicted with the diversity officers.
It's a sad age when you can get fired for reasonable intellectual discourse. It's not like he shouted women should get back in the kitchen.