I think the reason is none other than the blockchain system that controls cryptocurrency that is considered better than the system of bribery. This makes the crypto world the main rival of the bank system.
A large transaction is known that has occurred anonymously in the network of bitcoins. It is 180 million dollars. Imagine, absolutely anonymous people, sent such a huge amount of money, without the permission of the state and banks. The loss of such profits and control from banks, of course, will cause bitcoin rejection. This is a war for the sphere of influence.