Is the majority of high detail astronomy done from earth or is it done with satellites? I'm struggling to understand the significance of this

Science cannot get in the way of profits!

If we had the money, there's no legal repercussions to going up there and deorbiting the satellites right? Maybe install a defense platform to shoot down any more from spacex, oneweb or whoever else tries putting them up.

Starlink, isn't that the planetwide wi-fi initiative? Do they need those emissions to function? Other than the fact that it's from a corporation, it seems to me that internet connectivity across the whole planet would be more valuable to humanity as a whole than clearer views of space on one invisible part of the spectrum (which they can still watch from space if it's that important.)

Though the competition between multiple corps trying to launch satellites doesn't seem good, and it'd be nice if some FOSS initiative and/or intergovernment collaboration were to step in and make it one set of satellites free for everyone.

And also how does space law work? If you launched a predator satellite that starts taking these out, again, launched from international waters, is that, like, illegal? Considering they're a private company?