Well... bad night sky is really a problem in cities... where there's already fiber. But in most rural area (at least in France), the night sky is still "pure enough"...

I understand basic network connectivity problem, but I'm not sure that satellites are the right answer wrt the impacts

"ultimately, the question is not whether we should do it; it’s who’s gonna stop us". You're right... and I can't anything else but law... coming a world agreement on how to manage space around the world