Why does everyone hate Trump?
When someone stands up and points directly at America's problems, he will be scorned by the political class. When someone wants America to resume its leadership in the free world, he will be called Imperialist. When someone says American pride is good, he will be reviled as arrogant. When someone points out the things our government does in our name, are often stupid, he is called crass and uninformed.
There's more, but you get the idea.
It doesn't take a genius to point out America's problems, but it takes a idiot to offer some of the solutions he has. He's racist, sexist, arrogant, stubborn (in a bad, unhelpful way), and manipulative. He doesn't even want to be president, he's just sabotaging politics and ensuring that the Republicans have zero chances of taking the presidency.