You seem to be underestestimating the laziness of the people, and overestimating their resolve. Angry forks usually don't last, angst doesn't prevent maintenance burnouts.

clicking "fork" in github is pretty easy

If you think clicking “fork” is all there is to it, I have some bad news for you.

You underestimate the value that something like uv and company bring to the ecosystem. Given enough time I could have seen it replacing some core utilities, now that its owned by OpenAI I don't see that happening, unless OpenAI "donates" the project but keeps the devs on a payroll.