You’re putting words in my mouth.
How would you write the rules to get what you want? It’s a complex question.
I used to always buy Mancini roasted red peppers for salads and sandwiches. My grocer did a strategic sourcing exercise and now carries a house brand and some other brand. Should they be compelled to carry Mancini?
WalMart requires that vendors be able to fill orders on tight timescales. If you can’t, your out. Is that ok?
Costco requires that I pay them to shop there. Is that ok?
My wife owned a mall kiosk, and part of rent was a cut of the gross. Is that ok?