When Trump says/does outrageous things, it's easy to dismiss them with "Well, that's just Trump. Nobody takes all that stuff seriously or defends everything he says, so his nuttier ideas can't happen anyway."
But then you read what Trumpers themselves say, and it becomes very clear that there are indeed a great many people who refuse to split with him on anything, and will follow wherever he wants to lead. That means we do have to listen to everything he says, and take it all seriously.