As some point this stuff will end up back where it belongs, on the lunatic fringe.
But it's important to pay attention to that unhinged, paranoid rage: That's what got Trump elected in the first place. It's real, and to continue ignoring it would just make ultimately addressing it a longer process.
And honestly addressing it would require the Left to look in the mirror. That's not happening.
Naw, man, what got Trump elected in the first place was that the Democrats listened to people like you and nominated Hillary instead of Bernie. People didn't vote for Trump because they don't like leftism. Those were the same people who voted for Romney and McCain. Trump didn't even move the needle in terms of turnout on the right. He got LESS of a percentage of the vote than Romney did, both times. He got less of the WHITE vote, both times.
What got Trump elected is that Hillary was a corrupt, unlikeable witch who passed herself off as a feminist, but her only real claim to fame is that she kept getting rewarded for not kicking her no-account husband to the curb.
People stayed home, people voted for third parties, not because they wanted Trump... but because Trump was able to create an image of Hillary as corrupt. Which wasn't hard, because she always looked like she was trying to pull a fast one.
He tried the same thing with Biden, but it didn't work.
Now, what you call the "Lunatic Fringe" is people being sick and tired of "Business as usual" in government. That propelled Trump and Bernie because they actually stood for something, even if something was a bit nuts.