I'm lucky in that I have a real grocery store nearby to compare to. If you live in a food desert where these big chains have driven out all competition you wouldn't have a choice.
Carrying cost of produce does not add up. If produce is going bad at that spoilage rate the store management fucked up and didn’t order the correct amount of product for the location. You can’t wish your way into a product mix.
Nothing was stopping grocery stores from identifying this need. Pretending your customer base is more affluent than it is sounds like a quick way to go out of business to me.
Perhaps the rural grocers are not carrying the appropriate product mix for their current (new?) customer base, and are overvaluing customer service?
I don't like it - but I also spend time in rural communities and see why these places beat the local grocers. They offer better value for the dollar. Often they are indeed cheaper on a unit cost basis, much less overall per transaction.
It's sort of like folks screeching about "food deserts" in urban communities I've lived in, thus enacting laws forcing fresh produce be carried by the local convenience stores. That produce simply rotted on the shelves since - surprise! - the local business owners knew their customer base better than a bunch of do-gooder ivory tower academics did.
You can make some strong cases for Walmart putting Main Street rural America out of business using predatory pricing schemes and the like. It's a lot more difficult for dollar stores.
You shouldn't say "screeching" if you want to be taken seriously, it makes you sound shallow and dismissive, incapable of understanding how your narrow outlook is not applicable in some situations.
Please, take even the most basic efforts to understand what people are talking about here instead of forcing me to shove information down your throat like you haven't learned how to use an internet search yet. You don't need my help, and nothing I can say will be more convincing than your own personal research.