You talking about something that's already been fixed mate, Ethereum transaction fee is no longer a problem and August is close which we will see even better and cheaper transaction fee on Ethereum network, the headache is already over, as for the question you asked many people just prefer ETH and you and I can't change their minds
Ethereum fee is still very high when you compared it with Binance smart chain and Matic network, which hopefully will go lower in the next 2 month. By the way Ethereum usually doesn't deliver projects on time. Ethereum transaction/second is till very low and it has to brought up to 2000/second to have some meaningful reduction in transaction fee.
that's what the community hopes for soon. Hopefully, everything will get better in the next two months. I think that development is still often delayed, I think, is the reason why so many traders and new projects stick with BSC.
we can see how pancake-like exchanges become as awesome as UniSwap in what I think is pretty short.
but I'm sure, when everything is resolved, ethereum will get huge adoption in the market.