people with money can buy mining factories and make decisions anyway.
The distinction feels irrelevant
It doesn't matter if the coin becomes run by another geographic area if it's illegal for you to trade in them
There is little to no evidence of this. Completely unsupported conspiracy theory.
Sure they can. It's easy to only mine on top of blocks from certain sources, and if most of the network does this then those are the only blocks that matter.
And the motivation not to do it is the same, people will get mad and stop using the grossly manipulated coin.