I think when this happens the countries will put their attention to destroying and finding the root of this Bitcoin and it will be a hard time. The value may begin to increase since it is already illegal. Also with this, some may be in jail because even if it's still illegal we all know what Bitcoin can give to an individual and some need that money in order to satisfy their financial lacking. Also the era and the career of all cryptocurrency will be put into law too so it will all be gone.