So this is not something anyone is going to like to hear, but cryptocurrencies satisfy the banking industry and governments' top currency objective of eliminating physical currency as a means of social control.
Cryptocurrencies can be hijacked by the banks easily by mining at a loss and at low fees in order to force out other miners. When they have control of mining they can then force the entire system through their exchanges by refusing to process transactions that are not through their exchanges.
At that point they have control over the cryptocurrency forever.
Now why would they want to do this?
Because they want to be able to freeze the accounts of protestors, which they cannot do with physical cash, in order to basically kill them.
You protest, they freeze your accounts. Just like they did to wikileaks and so many other organizations fighting corruption.
Without access to your funds you can't pay your bills and end up homeless.
People say that cryptocurrency cannot be effected by this, but the reality is that governments can, as of now, completely control internet access and regulate all exchanges, no matter the currency.
Correct me if I'm wrong.