No, that's not gonna be happen. We all know that government was categorize in centralization system while Bitcoin was categorize in decentralization were obviously the government can't able to control bitcoin because of this wonderful and great features of bitcoin.
i agree its hard to be stopped. but if all country declare bitcoin illegal, i wonder what will happen to the market value. what makes goverment cant stop the coin is because the technology that cryptocurrency had such as blochchain . k still believe the future of all of thing related to business is this technology.