I really wonder how and what will happen if bitcoin will be wiped out. What will happen to cryptocurrency, bitcoiners, and other altcoins if bitcoin is gone...??
Basically the internet is too large for them to manage all crypto transactions. So, if btc or altcoins disappear then that is also the day when the world no longer exists. But I do not think that's going to happen now, so many countries have announced their acceptance of btc and other virtual currencies as a payment method and most of them are big, have the strong economy in the world. So you do not need to worry about this. The worry is that your country will ban btc and altcoins. No one likes it.