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
Bitcoin has not killed any but a lot of cryptos and the ones remaining are shadows of themselves which they know that they will soon be nowhere in the market,without Bitcoin existence they cannot survive, with a matter of time, they will no longer exist.
They are the ones killing themselves because of the bases on which they are established
Shitcoin/altcoin has no purpose of creation, and so no it has no value, authenticity or utility, they are bent on making people believe that they have something to offer, but deceive people and collect their money, that is they are scammers that dupe people of their hard earned money, but now a lot of investors have known them and that is why they are no longer going for them and they are struggling, imagine creating shitcoin just for joking purpose to other useless crypto tokens. They are not created for any purpose but to scam investors.
Bitcoin was created as an alternative to current financial system, which payment system will function within a central points of control, it is a digital currency that gives individuals control of their financial transaction which Bitcoin has being achieving its purpose and it's seen globally.