Welcome to The Perfect Curve.
Ignoring the matter of who owns the respective businesses and how they operate, why should a shop which sells most of the things most people want to buy be restricted in its trading hours on a Sunday in order to protect the business interests of a shop which doesn't sell most of the things most people want to buy?
Brought to you by simon gray.
Please note! This is work in progress - if you have come across it by accident you're free to stick around, but please be aware not everything will work as intended yet. I have a To do list.