I don't worry too much about withdraw fees on crypto casinos because I only deposit! House edge, fairness of the games, trustworthiness of the sites are higher on my list.
But yes... some of these withdrawal fees are ridic.
The problem with withdrawal fees is that the prices are fluctuating at an bemusing pace so you will either pay really low or really high at a given day, if there is a way where they update the withdrawal fees in consistent with the current prices, that would be good.