Also why is an US agency (well, the Orange in this case) deciding for entire space? The same goes to other countries.

In principle, sure. In practice, it seems like the ornery and the thin-skinned rise wayyyyyyy past the humble and the competent.

Yah, China doesn’t seem to have a problem producing enough power.

They'll use the heat to turn a steam turbine which powers a laser pointed at the polar ice caps.

Growing demand by billionaires*

Well, this is a stupid idea and it's probably not going to happen. That said, if someone were to do this, it probably wouldn't contribute much to Kessler syndrome because you wouldn't actually want a million free floating satellites, you'd want a million physically connected satellites. Picture satellites designed to link up into a giant grid. Effectively, that's just adding 1 large satellite, built over a thousand launches. And you wouldn't want it in low earth orbit either, you'd want it higher, where it could get sunlight 24/7 365. And at those middle orbits, between leo and gso, there's really no competition for space there, that zone is empty.

Dyson Spheres were about surrounding stars and are not necessarily about the singularity.

But yeah, I could see Grok scrambling the things up and giving fElon the idea of shooting e-waste into space...