>and by _state control_ I mean something along the lines of a central bank.
So central bank control would be something like "expansion of money supply beyond 21 million bitcoins". Therefore, your options (B) Coinbase/Binance (C) Visa/MC/banks and (E) courts -- really have no "control" over that "central bankish" aspect.
EDIT reply to: >Central banks [...] don't have complete control about the money supply, because commercial banks also create money via fractional reserves.
The Federal Reserve (central bank) in USA is the entity that adjusts the fractional reserve requirement.
https://en.wikipedia.org/wiki/Federal_Reserve#Reserve_requir...
> The idea that no one can expand the supply of bitcoins beyond 21 million is a nothing but fairy tale.
It could theoretically be done but it would require the coordination of the Bitcoin developers + miners + node validators. A crypto-exchange like Coinbase can't do it.
As a previous case study, Coinbase was part of the group that aligned with majority miners to change the Bitcoin protocol to increase the block size -- but all that influence and miner support still couldn't get the Bitcoin network to adopt it.