Let us not be too focused on bitcoin or cryptocurrency in general, financial crime has always existed between the financial institutions, governments and some individuals and this has always been the norms, it has been happening and keep repeatedly happening, government cannot control it, why would having financial control be more effective on a decentralized network with thebuse of AML agencies when they aren't done yet with fiat, those using it for illicit activities are less of our concerns as long as we know the best means to stay off their limit from attacking us.
Nothing, we just have to leave it as it is, all you could do is to know how you could safeguard your own asset and get secured, if you're not been vulnerable, they won't attack or scam you successfully, make use of a decentralized wallet and don't expose your personal details.