Having to buy a larger house, a larger refrigerate, a larger transport vehicle to get the option to potentially buy in bulk. When in effect what they actually do, and data shows this, they buy to much perishables and then throw them away.

So I can buy that yes, there some potential places where this theory could potentially apply.

However, if you derive a social theory from these effects, I would like to see some evidence of this effect being really large.

Compare that with the land use situation I keep bringing up, we have prove and had it for a long time that density and walkability does massively reduce the living cost of poor. This was modled in detail for California for example:

This video shows the results of some modeling done for California by a famous urban planner: https://www.youtube.com/watch?v=fUtdFbK4YG4