It is specifically a conspiracy theory that there’s a price-fixing cartel across the entire economy. You can give rhetoric about unchecked capitalism and all this, but the fact still remains that we’re talking about hundreds to thousands of companies that would have to opt into this scheme (drawing the line fairly arbitrarily at “the ones that comprise most market share”).
I raised this point already - individual corporations are incentivized to break with a price-fixing scheme because it increases market share. Consumers don’t want to pay exorbitant prices if there’s any alternative. Didn’t hear a response.