What will happen once after a fork, every decides to leave/sell out their bitcoin for the forked alt. Whatever the reason, whichever the fork and outcome name, would that be the end of bitcoin? How will the btc value be afterwards?
And how would the miners react to it?
Don't worry about it because that's not going to happen. Bitcoin is the first of its kind. So when we talk about cryptocurrency, bitcoin comes into the mind first. When medias and newspapers talk about bitcoin and not about altcoins. That's the difference. If you see, bitcoin is getting popular day by day than any other altcoins. Actually bitcoin has already established as a leading coin in the cryptoworld. There will be always buyers for bitcoin. When there is demand definitely its price will increase naturally. When the price increases, miners will get more profit and they will continue to mine it.So nothing can replace bitcoin.