Regarding “fright-wingers,” I don’t like any of the terms and nicknames that persistently distort a name or title, whether it’s this one or “libtards” or “tRump” or “Republicons” or any of the rest of them, in politics or out. I don’t care who they’re meant to insult, they’re not clever, cute, funny, or meaningful. They’re just assaults on the language, all of them ugly and cringe-worthy.
And this is one of the ones that cause you to spend longer saying the word, not a plus in my estimation.
As for the original question, I think a realistic concern would be to ask what would have to happen to the country to even make it possible for someone like Greene to be elevated to the top office. If Trump himself is someone like Greene, then it’s already happened, and we’ve seen what that looks like. After Trump was elected, I swore never again to say “At least it can’t get any worse,” which is what I said after Bush 2.