Is Ethereum going to die in my opinion is impossible and I think it is beyond everyone's thinking, Ethereum has a large market cap and many people hold this coin and the most popular coin after bitcoin.
and even though the fees are high, there are still many transactions that have been done and have a very good track record and besides that it is very unlikely that the second best coin after bitcoin has just died while there are still many coins under it and still alive.
and it looks like bitcoin transaction fees are also high whether bitcoin will also die if that's the reason, that's not possible.