I don’t think so. Even if they could, what does that mean? That it is illegal to run the software? Illegal to sign transactions? Illegal to your broadcast trans

I don’t think so. Even if they could, what does that mean? That it is illegal to run the software? Illegal to sign transactions? Illegal to your broadcast transactions? Others? Blocks? Cash on the other hand, yes. It will stop being printed, and eventually demonetized.