Your comment is actually a great example of why his approval rating is as high as it is. It's because those who still support him know what you think of them. They know that you think of them as less than human, and they are willing to do anything, even support a complete monster like Trump (and he is a murdering, sociopathic monster), to fight against you. And one promise he is keeping, along all the many he's broken, is that he is fighting the left.
Don't think that people like you, who so casually dehumanize those who disagree, have no responsibility in him getting elected.