It's not that easy to stop Bitcoin throughout the world, many steps will be responsible to ban crypto currency, as btc will be banned the demand for btc will be lower and so the price of Bitcoins will get less. If this happens on Large scale, with including many standards btc will has its end value. But it will take a long time, till then we have enough time to make money.
According to me if this happened then this will be the most shocked news ever because people all over the world invest in bitcoin and they will lose the source of their profit. The members will got free because all the members are busy in investment and bitcoin stops then they isnt need to invest because nothing will left.