If you want to stop the expansion of Walmart then:
A. Stop shopping there (if you haven’t already)
B. Convince as many people as possible to stop shopping there.
That’s the free market solution. The problem is that Walmart allows people to actually buy cheap food and clothing, and my God, people like that! It’ll be pretty hard to convince people to pay more for their items at other stores just because you don’t like Walmart.
there is nothing more expensive than cheap food and clothing, made by ChiCom slaves.