I quote Natalie Brunell; Bitcoin is a technology that should be strategically embraced by the United States.
Bitcoin does not threaten the U.S. Dollar - our country’s policies have been doing that.
Considering Bitcoin as a threat for the US. dollar is the USA. issue. It is not problem for the world and globally there are many nations which can have different policies and regulations for Bitcoin.
The USA. is a big nation and has a biggest economy but it won't be able to stand alone by itself. If there are other nations which have more friendly policies for Bitcoin and cryptocurrency, more companies will migrate from the USA. to those nations. What will the USA. get after all?
They will probably have less tax from cryptocurrency-related activities, mining, projects and they will have to change their policies to be less strict against Bitcoin and cryptocurrency.