It's magnitudes more expensive to keep putting them up than to take them down.
This reads a bit like when, as a child, we'd discuss who would win in a fight, Goku or Superman.
I doubt bitcoin 'billionaires' would put more up, because liquidating that much bitcoin would crash their market (considering >70% of trades on exchanges are wash trades) and require them to go against tragedy of the commons.
You've either missed the point or are intentionally ignoring the context, because "China did something" is actually "China successfully shut down bitcoin mining inside it's borders and has the capabilities to shut down these satellites if it chose to do so".
That's not debating super heroes or even saying other countries will do it. If China saw these as a problem, they will likely deal with them.