What do you tell people who complain about home game rake?

I run a home game usual 2/3, 2/5 and 5/5 I have a proper table, quality chips, chairs, dedicated dealer, tvs mounted on the wall, free catered food, beer and liquor served by lovely ladies. Yea I rake a little (10% 20 bucks cap) it's just to cover the expenses and put some money in the dealer/girl's pockets. Lately some of the players (primarily losing players) have been complaining about the rake being steep. Given that rake is only an issue for players who are winning how do I tell them off? I'm just trying to provide an enjoyable experience for the players but they don't see what it takes to run a game.