That's competition. Monopoly is when you don't have real competitors. And yet somehow they compete vs. Amazon, Target and a thousand other stores.
They don't have control over the supply of any particular good, it's not like an ISP where they have covenants with local governments that limit competition, they're not Standard Oil. They're not even at the level of Microsoft, because there's not much they can do to exclude competition.
But I guess some people have tried this tact, before. Here's an article which discusses many of the points you've made and explains why they don't make sense:
Walmart quickly becomes a local monopoly, because they dominate over the local competitors who cannot leverage the same economies of scale to lower distributor prices nor afford to bleed money in one area in order to take over the local market.
Honestly it seems you either refuse to read what I wrote, or you are invested in a free market ideology. The link you posted is nothing more than a hard-libertarian free market fanatic opinion blog, heavy on snark and lacking in value.
Read about the damage Walmart does to communities and why even their mere presence in the market completely distorts it:
They don't have control over the supply of any particular good, it's not like an ISP where they have covenants with local governments that limit competition, they're not Standard Oil. They're not even at the level of Microsoft, because there's not much they can do to exclude competition.
But I guess some people have tried this tact, before. Here's an article which discusses many of the points you've made and explains why they don't make sense:
https://truthonthemarket.com/2006/07/10/the-unconvincing-ant...