I agree that withdrawal fees shouldn't be part of the equation at all, or if they are, it should be something symbolic. Popular fiat casinos don't have withdrawal fees either. But I have also heard that some of the crypto casinos that have withdrawal fees aren't the ones that charge those fees. It's done by the payment processors they work with. They are the ones that charge the casinos for their services and the casinos then require that the players pay these service fees. 

I have absolutely no idea what you are talking about.