I don't know the exact answer, but it is difficult to do. The vast majority of people involved in Bitcoin mining are people who want to profit from Bitcoin mining, and some people even borrowed money to buy their mining machines. This is a very common thing in China, where 99.99% of miners need to sell Bitcoin to pay off debts and pay electricity bills. Of course I don’t deny that there are a small number of people who voluntarily become Bitcoin miners because of the great cause of decentralization. Even so, in many cases they still need to sell Bitcoin into legal currency to meet their own needs, such as facing emergencies, unemployment, or illness.

There may be people in this category who still have a very stable income in addition to Bitcoin mining. Mining is for the realization of their ideals of decentralization, and even for the progress of the entire civilization. I have been in Bitcoin for too short a time, and I have not met such a pioneer. But I believe they exist, and I hope they exist.