We're in a democratic process right now and he's not winning. Trump deserves ridicule when he mocks a handicapped reporter, a Gold Star family, and refuses to endorse fellow Republicans until he's shamed into it.
But he did win the Republican Nomination. So, if one supports the Republican nominee because they are Republican, they should not be excoriated for doing so and accused of being Racist, Neo-Nazis, etc. because Never-Trump arguments are so weak, they have to resort to name-calling.
Obama made his "special olympics" remark, it was tasteless, Trump may have done the same, we can't say for sure.
Obama has said the police acted stupidly, has said racist things as well.
Vote on political correctness if that is your thing, bravo for it.