I heard it has something to do with different interpretations of the DotP (Dictatorship of the Papacy) but idk if that’s true.

I’m not the most well-read on theory, but I don’t understand why the left is always purity testing and fighting over little differences like this.

You never see this sort of thing on the right, even when they seem to have wildly different ideologies. Look at the level of coordination between right-wing countries like China (anarcho-capitalist), DPRK (neoliberal), and Cuba (white nationalist). If the left could figure out how to get along that well, I feel like we could’ve already achieved MAGAcommunism by now.