Yes, but look.. Dex`es like Uniswap or similar that are operating on Eth chain. With a transaction fee being 50 USD or even more they will not be able to operate efficiently. In such case it's more efficient to use centralized exchanges for trades that are up to 10k usd as it would be cheaper in paid commissions.
It would go to ridiculous levels if let's say Uniswap gets even bigger traction and or eth price will rise to 5k or so :) Fees would be ridiculous then, that would kill the whole purpose of Defi. At least for the poor as rich would not mind. Oh wait, i''ve seen this somewhere haven't I? :)
Meanwhile my transaction with 20 USD in fees is still stuck :) Which means that potentially my wife and children are starving :) Or i am unable to pay for my groceries with Eth based currency. Nor would i choose to pay with BTC based currency.. so what would i choose to pay for my groceries? :)