This has been building since the day Limbaugh went national, and then was supercharged by the internet.
Talk to a Trumpster in real life, listen carefully, look in their eyes. These people are terrified. They think the commies will be rolling down the street in their tanks any day now, to take them to concentration camps. And then White Replacement for the blacks and the wetbacks will destroy their lives forever. Any fuckin' day now, and only Trump can stop it.
I'm not kidding. I have many Trumpster clients, and they've been whipped into a paranoid frenzy by this stuff. I try to talk them down, but I doubt it works for more than a few minutes.