They all die. Btc is the internet. Nobody givez a poo bunches of lan
I agree Bitcoin is our base but I think we need 'systems' to trade in a decentralised way and to hold other assets including currencies, precious metals, stocks etc.
Only a fool wouldn't admit some improvements need to be made to Bitcoin, for one it's not even private, who wants everyone to see all their bank transfers?
but it's better to improve bitcoin itself, instead of making a new coin doing it, just add the damn thing to bitcoin, it is certainly possible