I believe that many altcoins will die off due to week fundamentals, all the weak projects, meme coins and speculative tokens will vanish over time. Bitcoin is more entrenched than any other crypto that's why I believe that it's strength will make sure any crypto that actually survives, must justify its existence
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.