I wouldn't say they are just as bad. They are also bad but they're bad in a very different way. The far right effectively has decided that objective reality doesn't exist at all. The truth is whatever they say it is and they will manufacture data as necessary. The far left on the other hand believes in data but is constrained by their inherent need to reduce every single problem to a combination of race, sex, or class, no matter how multi-faceted / complex the problems actually are. They start from the conclusion and work back to make the data fit. Where the far left and far right overlap is that they are both virulently populist, they both demonize their opponents, and they both believe in the absolute moral purity of their cause.
As an American, I'd say one side is always swept up in a religious fervor and the other is strung out on drugs. They switch roles every twenty years or so. The one doing drugs allows humor and the religious one doesn't.
They're going to switch again within the next two years, by my estimate. It'll be big, traditionalist sects (Catholic, Mormon, etc) on the right and cannabis on the left.
