What’s the difference between a fascist and an anarchist who does everything they can to kneecap the only viable left leaning political party in the US?

There’s no practical difference, just window dressing. They both cheer on oppression and pain for those suffering under Republicans.

Left is literally the opposite of authoritarian. You seem to be conflating a whole lot of ideas of terminology here. You sound like an ideological leftist who has been confused by the right's deliberate language-muddying.

Left is egalitarian. That takes many different forms.
Right is authoritarian. That also takes many different forms.

Authoritarianism (or vertical/hierarchical power structure) is THE defining characteristic of the right. "Auth-left" is an oxymoron meant to distract from the fact that wealth and power are one and the same.

Authoritarianism (or vertical/hierarchical power structure) is THE defining characteristic of the right. “Auth-left” is Doublethink; an oxymoron meant to distract from the fact that wealth and power are one and the same.

This is so incredible naive. Stalin? Mao? Evil authoritarianism comes in all flavors left and right. If you truly believe leftists aren’t capable of evil you need to study more history.