It’s not bitcoin that kills other cryptos, but altcoins and meme coins end up as dead coins because they aren’t developed well enough. They lack the power and utility cases to withstand every market challenges that arise. In short, they are weak and useless coins, that’s why they can’t survive long enough, unlike bitcoin which I think is good and tested enough.
Bitcoin isn’t intended to kill other cryptos, but bitcoin leads them instead, but due to lack of market demand, these coins end up dying too soon and vanish in the crypto market.
That's certainly true, altcoin narrative shifts every cycle and there's always formerly top altcoins that become abandoned and unused eventually have zero trading volume as well as close to zero on chain transactions and there's new altcoin that's hyped up.
BTC has been here for quite sometime and from the dominance alone it seems BTC just occasionally dominate the market then there's time for altcoin rotation, for the people who seek more profit and for the most part it has nothing to do with all those dead altcoins.
Altcoins should be more concerned about other altcoin taking over their position.