I think Trump supporters are dumb enough to fabricate that story.
This is a serious flaw in your thinking. You have this crazy idea that Trump supporters = dumb, Trump haters = not dumb. The obvious truth is that there will be a wide spectrum of people on both sides of the political divide. There are dumbasses on both sides, there are geniuses on both sides.

You can't just assume that everyone who votes Trump is dumb. If you actually think that, well sorry to be blunt, but it's you who comes across as dumb.