They are all in LEO, so they would naturally de-orbit in a matter weeks uncontrolled so, who cares?

Kessler Syndrome is cool Sci-fi, but not really possible to stop us from leaving earth. There is a very narrow band where the debris could accumulate (LEO), and as you get further away, the amount of space increases by a cube of the altitude, not to mention that only the “cheapest” low earth orbits would be affected. Things like polar orbits or sun-synchronous orbits aren’t affected. The band of debris only hinders stable orbits at that level, i.e. LEO satellites such as starlink constellations would be affected but it doesn’t act as an impenetrable barrier. It also doesn’t affect useful satellites like GPS.

Basically the problem described only affects the profits of a company that would be the primary cause of the problem. So in a way it’s self-correcting.

I mean, at this point I’m kinda’ hoping for Kessler syndrome… It’s so blatantly clear that the rich and powerful do not give two fucks about the consequences of their actions. While they’re raping and destroying the Earth, they speak of datacenters in space and colonizing Mars.

At this point, humanity needs to have the French Revolution 2.0 x10, or Kessler Syndrome better make sure we kill ourselves off before our ilk can infect the rest of the solar system.