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
yes most of them will, people invest in the safest narrative, and bitcoin has the strongest fundamentals most coins are managed by someone not completely decentralized so
i think big ones like ETH SOL will survive but others no.