[trod1234]

You are talking in circles while missing the point, and ignoring quite a lot of established literature on economics.

I'd suggest if you are limited on time that you read Hazlitt. Economics in One Lesson. You seem to conflate need for demand in your examples. The two are not the same.

Need includes anyone who could benefit/find valuable from the use of something, the value being derived from productive human action.

Demand in reality includes only the people who would make an actual exchange at a specific price point. The former is a superset of the latter.

You end up misleading others, and going into delusional territory when you ignore this nuance.