People would only follow mining power that represents their interests. They don't care about individual miners. If a majority of miners were not representing the interests of the users, the users would find a way to push those miners out and will carry on as before.
Miners can only generate revenue by mining a coin that people want to use. They want to use it because it is secured by a distribution of miners, such that no collaboration of miners can attack it. If the premise is that a group of miners can attack it, because that group of miners want to push their rules, then the concept is broken.
Total hash power is not the deciding factor. What matters is that honest participants have more hash power than dishonest ones. The honest ones can adapt far more easily than large miners, who have too much invested to handle something like a proof-of-work adjustment.
Miners can only generate revenue by mining a coin that people want to use. They want to use it because it is secured by a distribution of miners, such that no collaboration of miners can attack it. If the premise is that a group of miners can attack it, because that group of miners want to push their rules, then the concept is broken.
Total hash power is not the deciding factor. What matters is that honest participants have more hash power than dishonest ones. The honest ones can adapt far more easily than large miners, who have too much invested to handle something like a proof-of-work adjustment.