Crypto groups do not have this authority, and cannot impose their will beyond what the masses will accept. They compete with forks and alternative products. Some chains don't even use mining, some use alternate algorithms where SHA-256 ASICs have no advantage. If powerful groups try to force unpopular change, they'll just split the chain and more or less divide the value proportionally to the user-base that they can convince to join them.
We saw this with Bitcoin Cash, Ethereum Classic, etc. So if the Bitcoin network does something I don't like, I have the option of leaving and supporting one of the potential forks I do like. Force cannot be imposed, and products must compete. This is one of the advantages of open source, decentralized software design.