I think the real division on the "left" can be boiled down to those using all the language and rhetoric of left wing ideology but in service of fascist and conservative ideas.
For example, tankies or people who have been brainwashed by tankies; a person can spend all day talking about how they support Palestine and BLM and LGBT rights etc. but then turn around and defend the CCP, which completely undermines any claim that they're actually on the left/center.
So in that way it's less of a "progressives never agree" and more of a "anti-progressive ideas are constantly pushed into progressive spaces to undermine them."
[ In fake Scottish accent ]
They're natural enemies. Like fascists and leftists! Or neoliberals and leftists! Or moderates and leftists! Or leftists and leftists! Damn leftists! They ruined leftism!
Nah leftists true enemy is the luke warm centrist who will agree in theory but not in action. Fascists are atleast honest and easy to spot. Its the people in the middle who bothsides evey argument till we are sitting here watching genocide happening before our eyes and still nothing is done to stop it.
Anti capitalism is just anti capitalism. That's not a theory for how a society free from capitalism should work. Those theories will of course be diverse, and there will be disagreement.
Divide and conquer works for detroying social movements, and is one of the ruling classes favorite weapons of class warfare. It's easy to get agitators to derail the conversation or movement as a whole. There are fundamental differences in what anti capitalists believe should be done and how power should be distributed. I don't believe all leftists think the same thing, but I believe that the vast majority of "leftist infighting" is just agitation by the ruling class.
That's why even if I have my own personal views, I identify primarily as an anti-sectarian Leftist. Whether Marxism, Anarchism, or some other flavor of Leftism begins to truly lead the movement, it will be more important to push the movement forward than to spend effort on infighting.
Only a mass worker movement can get any real change.
Reminds me of when I was still religious lol. I was a part of the confusingly named Christian Church denomination (or something like that). But hey, because some churches believed in "once saved, always saved" we didn't get along! Which is hilarious because being away from it now all three of these very devisive topics
Once saved, always saved
You can lose salvation
Pre destination
All are really talked about the same way. If you don't act in what people believe is a god fearing manner then you were never actually saved to begin with.
But for real, basically every other part of the doctrine is the same. Jesus was the son of God who was fully God and fully human who died and was resurrected 3 days later. But because they taught sprinkling instead of immersion for baptism oh my god what a horrible misunderstanding of the scriptures!
one of these days, i hope people leave the idea of politics behind.
None of it is built to do anything other than prevent people from removing the people in power. The fact that this meme even exists is kind of ironic isn't it?