link to original reddit post by /u/mrpenguin_86
I think one of the things statists try to teach people is that capitalism is dominated by greed, which means everyone will try to make as much profit possible and sell at the highest price possible.
However, what most people forget and fail to internalize is this: there's almost always someone willing to take less profit.
What does this look like in reality? Take natural gas marketers. If you're not familiar, some areas will have an NG producer who sells to marketers, and you actually buy from the marketer. Now, in a place with one provider, they decide their profits, which are normally high. However, in a place with marketers, everyone is competing, and whoever can provide a product at the lowest margin is generally the winner (assuming all companies have similar price structures). If you want to come in and accept an even smaller profit, you can get some market share! In contrast, in a place like California, where you don't have options, prices and margins are high.
This is especially true for things like grocers and restaurants. Anyone can start either such business. And because anyone can, as most of us know, their margins are in the low single digits.
This is what people forget in a lot of discussions about the market. It's also the reason monopolies generally are never able to be established.