This is not surprising. In my circles, the people that most enthusiastically migrated away from X to Bluesky did so specifically because of their distaste for Elon Musk. They are largely centered about the West Coast of the US. And because X is so much bigger, it's capable of being more diverse.

Furthermore, I already had a lot of mute words and blocks set up on X to keep it palatable. I don't see any politics over there and it's entirely focused on creative work. If I did this on Bluesky I imagine I'd significantly cull my feed down to it seeming dead.

This reminds me of a similar rift that happened in the Seattle area subreddits. Many years ago ago there was a mod who was using their position to sell something (I don’t exactly remember it). So a bunch of people left r/Seattle for r/SeattleWA. Ad you might expect that was mostly techies and the terminally online.

Fast forward 10 years later and now r/seattleWA has become the right-wing subreddit. r/Seattle is more lighthearted and full of pictures of the space needle. This wasn’t the original intent, but once a community splits in two both sides are going to further differentiate to fill more user niches.