> version control systems must be shared.

This whole thread is about working with git coworkers while using jujutsu, and it was in that context that I wrote my comment: Namely that most who prefer jujutsu happily work with their colleagues who use git in precisely the scenario the OP mentions and don't see why the OP finds it painful. The OP and others should accept that reality.

> If it is like you say and different people are just inherently more or less suited to different paradigms, then not everyone can be happy.

If you force everyone to use git, of course not everyone will be happy.

If you force everyone to use jj, of course not everyone will be happy.

Thankfully, the whole point is git and jj users can interoperate without needing to care what the other is using. So yes, not only can everyone be happy, but everyone is happy! This isn't a hypothetical - it's a reality. It's the reason so many use jujutsu at work.