there are some altcoins that look like ETH killers and several people have asked questions like this a long time ago and in the end ETH remains the second best after bitcoin and no one has ever been able to kill or shift ETH position.
ETH was first present in the altcoin market and occupying the top spot in altcoins became the king of all altcoins and after that the appearance of Cardano which is currently being talked about and of course Cardano fans always think that Cardano can be an ETH killer, but that will not happen for I.
whatever is being talked about about the new blockchain that is being talked about and has a lot of fans, they will definitely have thoughts like this but remember, ETH has very strong power.