The enemy occupies the administrative "high ground", and always has.
The enemy can vet who can buy SHA256 ASIC mining rigs, quite easily, and likely does. The enemy can control who gets approval for a utility-scale electricity interconnect to power said mining rigs. (And takes fricking years doing it sometimes.) The enemy can see who is running any big mining pool, and "liase" with them. To prevent misunderstandings. And prevent processing ML/TF/CSAM/protesters/splitting bills. You want to stay legal, don't you?
The enemy finds it very challenging to control who can buy general-purpose compute, as Iraq, Iran, DPRK and most recently Russia could tell you.
