It is impossible and will not happen, I myself do not find a factor to strengthen the statement that Cardano is able to overthrow ETH, maybe the cost problem at ETH has not been resolved, but some time ago the cost of ETH was cheap. ETH has come up with an innovative design to solve this problem and let's see how powerful ETH is.
I also think Ethereum is too strong for Cardano to overthrow, I also don't find any good reason why Cardano can overthrow Ethereum.
It's true that Ethereum may have quite expensive gas fees, but I'm sure Ethereum will find a solution. So I believe the Ethereum developers
team is thinking of a solution. Therefore we have to think realistically that it is too difficult for Cardano to compete with Ethereum,
especially Cardano overthrows Ethereum it is impossible to happen.