Yeah, for real. Isn’t the entire point of cryptocurrency (or at least a key principle) to be resistant to censorship / centralized attempts to “kill” it? I don’t doubt that there is some damage that could be done to crypto as a whole by governments taking steps to “ban” it, but I don’t think we can put the toothpaste back in the tube here.
I suppose the highest leverage card that legislators could play to try to hurt cryptocurrency would be to put a stranglehold on the fiat currency on/off ramps (eg making businesses like coin base flat out illegal), but even after doing that peer to peer markets would survive (albeit likely after also taking some damage to user base, maybe).