The very first example on your list is the Walton family. Sam Walton, the founder of Walmart, grew up in nowhere Oklahoma as the child of farmers: https://en.wikipedia.org/wiki/Sam_Walton.

Show me where it says his wealth was built on your “WASP slavery money?”

Hang on, from a quick scan I see Koch is German in origin, Lauder is Hungarian Jewish, Pritzker is Ukranian. [edit] and DuPont is French … etc. I think you meant white, not WASP (White Anglo-Saxon Protestant).

Owning a lot of things and owning most of the things is a completely different thing . Obviously people who have more history in a place will be richer. This is hardly surprising.