Musky and Bezos are probably well aware of this so they happily pour billions into these systems. Whoever gets them up first is essentially taking up space others may want to use later on. The endgame is probably "make the world dependent on MY sat system and hike rates". And if the countries wanted to lay cable? Force the world to bail me when the overblown constellations collapse financially - basically make the kessler the future authorities' problem. Privatise profits, socialise losses, fuck everyone else because I got mine. If things go well the men in charge won't even be alive anymore when shit hits the fan.

There is no real danger of Kessler syndrome because these satellites burn up in the atmosphere after a few years anyways.

There are reasons to be concerned about the situation. Kessler syndrome is not one of them, not in LEO

I’d like to hope that in a few years when we collectively decide this was a bad idea we can start hitting them with lasers and ablatively decelerating them to burn up in the atmosphere.

If we do nothing at all they'll burn up in 3-5 years anyway. Starlink operates in a very low orbit. Thats one of the reasons there have to be so many of them. A higher orbit (like MEO instead of LEO) would mean fewer needed satellites for the same level of coverage of the Earth.