If Bitcoin ever got to the point where it could potentially be a threat though, governments would SWIFTLY move to fuck up Bitcoin. I know everyone says "GOVERNMENT CANT STOP BITCOIN ITS DECENTRALIZED...." Well yes, but only in theory is this still the case.
Enthusiasts say that for the case where ONE government tries to do it within its own jurisdiction. If ALL governments decide to take action against bitcoin, obviously it won't keep the price that it has now. The problem is that no government can go ahead with such a tyrannical ban and call itself democratic. Public opinion would matter in that case. The greatest hedge against government action thus, is not privacy or decentralization but public opinion. Unfortunately, Bitcoin and cryptos don't exactly cover themselves in glory with the constant scamming and hype cycles leading to uninformed newcomers losing money.
If the US financial regulators (and the rest of the Western world) came out and said that Bitcoin is now banned and that any that are on an exchange will be sold and be exchanged for USD effective IMMEDEDIATETLY.
That would kinda cripple the price of Bitcoin, usage of it, and so on.
That depends a lot on what CHINA decides to do. It has a lot of infrastructure and a population deeply involved in crypto. I am pretty sure if US Fed decides to unilaterally de-link USD from bitcoin, China will be very eager to support it with RMB. They couldn't have a better chance to increase usage of their own currency in all the developing countries. Bitcoin survives because its everyone's friend and everyone's enemy, depending on how you treat it.