How Can They Be So Mixed Up?

I take back what I said about all of Trump’s supporters just being mean and nasty. Some are just so hopelessly mixed up they’ve mistaken Trumpism for the ”good” side of things.
Look at this FB post I saw. Here’s the main part of the post:
“. . . Vote to save our country. . . If the left wins in any category we have not done our job as citizens to defend our constitution. If the politicians in Congress won’t do it we have to. Otherwise we, our children and our grandchildren will have to fight and maybe die to gain our freedom back. I don’t want my kids and grandkids to have to see that or do that. Vote Conservative. Vote against the left.”
And gazillions of people liked the post. Could they be any more confused? I just don’t get it. Where do they get ideas like this and how do they get it exactly backward? The person who wrote this is totally deluded, and I could handle that if so many others hadn’t agree with the post. Posts like this get hundreds of “likes” every time. Especially on Facebook.
I feel like I’m in an upside down world. They want to keep racism? They want to keep things like they were in the old days? They don’t want to progress, that’s for sure. And how in the world does voting for Trump defend the Constitution? The exact opposite is true.
I didn’t respond to the post, because it is hopeless. But how did this happen to so many I once thought of as good people, intelligent people?