That's because a lot of this hasn't really started to affect them yet. Sure he has his merry band of loyal supporters but there's also a lot of people who are just not really very politically aware and aren't paying attention.
Think about your grandparents or if you're old enough just your parents. They sit around watching fox news and seeing posts on Facebook and they assume that those are viable sources of trustworthy information. Which obviously they are not.
At some point in the next few years they will start to wonder why the shelves are always empty now, and why are the products they do have so expensive? Also why are so many businesses closing, I was told the economy was doing well.
Getting the media to lie for you only works for so long.