For me, I don't think that Ethereum can beat Bitcoin as the Number One in the crypto market, it's because Bitcoin is getting more and more bigger each day because there are more investors coming every time and Ethereum still has a lot to improve in their blockchain and their security features.
Dude, do you need to have this bullshit again? And ethereum is not a security token.
This is cryptocurrency we are talking about here, which you clearly have no idea about. Clearly. Supply wise, ethereum would take a lot of tome to be mined because of its bigger supply. But in terms of existence, I don't think they would die but something else that we don't know much about might happen, like crypto being replaced as a whole, or something ridiculous. This discussion is becoming boring now.