At some point you’re just picking items and responding to them. This is taking the discussion away from your core argument. You talk about Costco but conveniently leave out in-n-out because it doesn’t fit your narrative.
My core argument has been that corporations offload tasks onto customers and then use the money saved to boost their own profits.
Your argument is that the cost saved is passed on to the customers.
I’ve provided examples of why that doesn’t happen, and provided examples of companies that don’t sacrifice customer experience while maintaining lower prices to show that the rest of them are not doing the same.
I am yet to see any substantial evidence from your end to prove that savings are indeed getting passed on to customers. And unless that’s something you want to discuss, we should end it here.
You're the one who started talking about specific examples and I agree that that's irrelevant since different companies decide how to allocate the money they save by reducing labor costs. Which is actually a refutation of your general assertion that labor cost savings don't constrain prices.
Your argument is based on the conspiratorial belief that "corporations" are a monolith conspiring to allocate the savings from self checkout. You have not explained why each of them is not incentivized to use that savings to reduce costs to take more business from their competitors. Is your answer that the businesses are all colluding? You have also not explained why they are constrained at all in the amount they can raise prices. The drip theory makes no sense. This is all basic economics.