The crypto scammers had a plan—get wealthy enough to bribe politicians into creating a regulatory environment they could control—so they could rip off stupid people at will.
Sam the Scam failed—but there are a lot more where he came from...
No it can’t. Because there’s no one in charge. Just look at torrent download. Those are illegal (well mostly, depending on what the copyright holder says) and no government anywhere has been able to do anything about it. Because they’re basically undetectable. The whole decentralized unblockable nature of the internet makes it so. It’s trying to hold water in your hand to stop these things. It’s just not possible.
And nobody that matter will us a government created crypto. Since a big part of the lure of crypto is the government doesn’t know anything. If these people wanted the government to know about their money they’d just do regular banking.