I don’t see how this makes sense. Walmart is consistently the cheapest grocery store around (save for Aldi but they’re not that reliable). The alternatives are mostly Kroger or Albertsons owned and their prices are just ridiculous these days. The smaller grocery chains end up having to charge a premium to stay open. I hate Walmart but when the products are the same I’m going with whoever has the lowest price. If they were around people would be spending more, period. If anything I’d blame the dollar stores for creating food deserts in already poor areas.