I can see your point and do agree that it's disruptive now. It also exacerbates the difficulty of learning a new platform. Despite that though I think the early adopters are best equipped to cope with that. They're already dealing with rough tooling and little documentation, official or social.

In terms of it happening when Lemmy, or even the fediverse as a whole, is bigger, if there aren't tools and practices in place to manage it I think the impact would be significantly more detrimental. Without it happening in 'the early days' those tools and practices are a lot less likely to be developed.

We need content and a welcoming community for everyone to stay.

I think that idea is exactly what both Beehaw and lemmy.world are trying to do. I don't know all the thinking of the instance admins, but from my observations I see Beehaw prioritising their community and lemmy.world prioritising federation and availability. I don't see it as 'infighting and politicking', just co-existing view points for managing instances. To put it in terms of popular monolithic platforms, I'd imagine there would be a bit of a shakedown if 4chan, reddit, slashdot, digg, et al. started federating. I'll not attempt to draw parallels between lemmy instances and other platforms, that's above my pay grade :)

I imagine we'll end up with a spectrum of instances with varying degrees of federation and permisiveness, and that the directory services that are popping up will continue to improve to help you find and instance that works for you.

I think one of the challenges with migration is that reddit doesn't map one-to-one with Lemmy. With a monolithic platform, centralised admin can enforce the types of things I think your hoping for. On Lemmy I think inter-instance differences are inevitable, while on reddit the concepts didn't exist for it to become possible. Working through how those are handled will result in Lemmy as a whole improving.

I'm pretty optimistic about it.