Turnabout is fair play. If Trump doesn't want people to make fun of him for his physical qualities, he shouldn't do the same for others.
https://www.nytimes.com/2018/10/16/us/politics/trump-women-i...
https://www.vanityfair.com/news/2019/08/donald-trump-protest...
If on the other hand you think that special grounds deserve special rights then go ahead. I have an apartheid to sell you though.
It misses the point in that there is collateral damage for body shaming as well - if you mock trump's weight because he is a bad person, you're still implying "fat=bad" to every good fat person out there too.
So am I allowed to mock those liberals physical qualities now, since they mocked trump for mocking someone's physical qualities? If they don't want to be mocked they shouldn't do the same to others.