If the alt right doesn't scare you, you aren't paying attention. This isn't a few random crazies. These are not some wack jobs looking to start a war. They think they are already fighting one. They don't want to talk politics, they want to silence the opposition by any means possible. The tame ones will attack en masse online and simply overwhelm any person with simple volume of attacks. The not so tame ones? Look what happens to gun and ammo sales when a Democrat gets elected.
Trump is ignoring subpoenas. He's guilty as hell of obstruction of justice. What if he loses in 2020 but doesn't step down? He looks more and more like he's going to start a war with Iran.
I've been backing away from this discussion because it is so flipping depressing and scary. I worry less about the Democrats winning in 2020, I worry about the system of government no longer being in place. They already asked Trump back before the election if he'd accept those results (when he assumed he was going to lose) and he said no.