I read dershowitz books where he insults one by one Rabbis in Talmud with labels like sexist and biased. And then talks about saving American Judaism.
On American politics he is 50-50. On being a proud Jew he is 1% at most. Every bit of opposite you see between him and Rav Kahane in their debate, x3 it today.
The left knows that giving us heros to follow will help spread their goals of moral disorder. If they weren't currently using him for their ends, they wouldn't mention him.