The ones that survive are the coins that have good commodities and that not many can afford in the crypto space.
Bitcoin is not killing them, but those who are not as good as Bitcoin in all aspects that Bitcoin has.
You can count how many coins and tokens are listed in the crypto space both old and new.
Most of them end up being dumped and the saddest thing is that they are like garbage that fills the owner's wallet.
Hence, don't choose them. The choice that will not make the owner regret is Bitcoin.
Bitcoin has much fewer risks attached to it - because we know what to expect of it.
Whereas with other coins - you do it on your analysis too, but regarding the fact that they chase profits more than anything.