The rest of the world are looking at the example that the USA are giving them and if they start banning Bitcoin, most ignorant smaller countries would not question their actions and just follow their example.
It is sad to hear but this is the truth because other countries do not spend time studying Bitcoin so they can create their own regulations but instead they are just following what the US will do. So it's not surprising that if US collapse then other countries will follow.
They have even done more of regulation to me, because we can see how they have asked binance exchange to open their own exchange that would be dedicated to their citizens and this is for the purpose of being able to control and regulate the activities/ transaction o their US traders in the platform that has been created. There is no country that has even actually placed a ban on bitcoin or cryptocurrency.
