Donald Trump doesn't care for political correctness, unless someone says something negative about him. Then it is the most offensive thing in the world, completely wrong, and mean spirited. I mean, the guy can't even take mild comedy at his expense, ranting against SNL. And to be honest, he has given them so much material and is a comedy goldmind. He is offended that a company made a business decision that affected his daughter's company. He felt the need to tweet about it personally, have Spicer rail on about it, have Conway rail on about it, and retweet it from the official POTUS twitter.
Sure, Donald Trump says what is on his mind (regardless of whether it even has a kernel of truth). He routinely belittles others who he views as opponents. But, if anyone else says what is on their mind that is negative about him, it is the worst crime committed in the world.
This is the behavior of a bully and everyone knows. Donald Trump hates PC, unless someone says something that isn't PC about him.