alt Hacker NewsAye.
My (literally, and self-proclaimed) communist former partner noted left-wing infighting. The Monty Python Life of Brian scene about The Popular Front of Judea ("he's over there") are, according to her, totally accurate in spirit.
Ironic, the right does strength through unity, the left talks about it and then argues with itself about who else used the phrase; the last time the left really did it was when trade unions still had teeth.
Jameela Jamil put this out pretty well: https://www.instagram.com/reel/DOvh4_UDHGy/ (sorry for the instagram link, couldn't find the original clip)
Basically the gist of it is that if you want to be "on the left", you need to have the exact, correct, and up to date opinion on every single micro-issue or you're literally a fascist hitler paedophile and will be ostracized.
Meanwhile "on the right" as long as you agree on maybe one or two bigger things and you can deal with or tolerate the rest while you move on with winning elections.