Shut it down.
Can a couple of these people agree that a well-coordinated merge & release to sabotage proof of work is ethical.
Can a couple of these people agree that a well-coordinated merge & release to sabotage proof of work is ethical.
A better way would be a global ban coordinated among every nation, and even then that would be difficult to pull off.
The earned value would need to transition to the non-proof-of-work favoured network.
Turmoil would take care of the $ value of the forks (crypto confidence is rattled enough as it is)