People who believe those on the far left represent the very opposite of those on the far right can aptly be called "political flat earthers."
Discussion
I've long thought the left-to-right straight line political spectrum is wrong. At the ends, it somehow bends around down into a circle until the far left and far right come together. And that's not a place you want to live in!
Horseshoe theory is mostly right.
In politics, sure. But if you actually believe in liberalism, which can be either "right" or "left" then you're not doing politics... you're withdrawing your support and consent from the criminal enterprise pretending to be government.