It will be a central banker with all the bitcoin in the end. They will buy the biggest mining farm and collect all coins through network fees.
Even by holding bitcoin we still lose to the central bankers in the end when we make a transaction they will collect the fees.
Whether it`s 100k USD a coin or 1billion USD a coin, it`s no skin of their back, just pressing a extra few 0`s into the computer when they make fiat.
Bitcoin does not free us from $lavery. It runs off the fumes of fiat.
How we beat them is to make everyone the currency creators, distribute supply 1 hour coin an hour or 1 second coin a second to unique addresses created from a human HWID, iris, fingerprint or heartbeat. That way when the central bankers buy the supply, everyone wins. Sure we don`t beat them, but if you can`t beat them, join them.
How did you come to that conclusion? it's already too late for the banks to control Bitcoin. Look at the current supply right now, it has already been spread into different users and those banks won't be able to do anything about it. Bitcoin has become too big for them to control. They should have started when Bitcoin was just starting.
Sure they can buy a huge amount of Bitcoin but that doesn't give them the control over it. They are just a holder. Sure they can have the largest Bitcoin farm but that doesn't mean they control all of the fees, there will always be someone that will compete with them, most likely China.
At the end of the day banks won't stop Bitcoin, they won't be able to control it.