Maybe in the short term on a limited regional basis. Walmart is not as much about prices but Logistics, and they’ve got that down pat.
Walmart is better logistically than our own government in time of a natural disaster.
Our local Wally's gotten way too thin on the restock part of that....for about the last two years, they've always been out of several "shopping list" items for as much as a week; way too much empty shelfspace.