This is just hypothetical of course, because that will not happen. Now already some countries like Japan f.i. are accepting bitcoin and governments of other countries are beginning to implement blockchain. So, no way Bitcoin will drop to zero. The price is dropping a little these days, it might even drop to 8K, but then the mainstream will start buying and bitcoin will rise to 30K.
Yes totally agree. Although some countries on the surface tried to "ban" bitcoin but alot more actually embrace it. There are even countries trying to create their own tokens. We will see bitcoin continue to rise very soon that's for sure.