As a matter of facts, Bitcoin will not be banned. On the contrary, cryptocurrencies will be accepted worldwide. But for a very high price: governments will regulate and cryptocurrencies will no longer be decentralized.
Bitcoin is banned by some country and this makes bitcoin stop being used by the people in that country like india example.
Ban bitcoin only in one country can not stop bitcoin for the whole but this can impact bitcoin in negative side. Hope no more country follow bannig bitcoin anymore.