I agree with some of what you are saying but:
> In cases of say fortnight, there are real server costs involved.
They are selling digital coins, there is zero cost to "minting" these. It's not up to Apple to make your margins work. F2P works because some people pay and others don't, the ones who pay cover server costs for those who don't. I can promise you Fortnight was bringing in a ton of _profit_ even with Apple's 30% cut. Also "think of the people running digital casinos for kids" (re: lootboxes and the like) isn't a winning argument. In fact I think hosting all that crap is a blacker stain on Apple than taking 30%.
> In cases of say music, there's licensing you pay.
Totally fair, see also: ebooks/audiobooks/tv/movies.
> If you order food, you are already working in the margins.
Apple doesn't take a 30% cut here.
> How can I compete vs netflix if any streaming service I make who doesn't have netflix's negotiation power has to pay 30% of every payment. I can't get close to netflix's price.
Valid when it comes to Google who seem to have struck a number of deals with places like Spotify (see EPIC vs Google suit, and why Google lost) and while there were some backroom deals with Apple I believe it was only for the 15% which Apple eventually rolled out for all subscriptions in the second year.