I think so, extreme ideologues like communists, islamists or any other hardcore ideologues fight among each other and in their own tribes all the time because they are actually divided quite a bit on the implementation details. Once the thing they rage against is gone, they will have to rage against each other. The anti-jewish Trump supporters already begin dropping out with disappointment.
This is what we see in fascism and authoritarianism - the goal is to always make the circle smaller. You start with immutable traits (race, gender, hair color, etc) to chunk out a large part of the population, but once they’re gone, that small circle needs to get smaller. There’s Always a Bigger Fish[1]
Leftists know a thing or two about infighting. If X becomes the right wing space and bluesky the left wing one, they can soon point at each other for "look, the other side doesn't even get along" gotchas.
I think the difference as I see it is that Twitter/X is oriented around increasing levels of "engagement" and encouraging contributors to focus on going viral in hopes of going even more viral by reaching the "For You" feed.
Bluesky seems a bit more like a 140 Characters mashed with Reddit with subtopics/submods of feeds as the focus. Also it seems to highlight the custom feeds feature which you can manage yourself. Twitter/X has such features but for the most part you are nudged away from these to improve "engagement" metrics. That said its highly possible that could change over time based on the long term vision.
Bluesky would be way worse than that in terms of engagement once their VC money runs out. Since it would be in their interest to promote more rage baits and echo chamber posts.
