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).
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?”
Do you know anything about it? Walton’s family wasn’t wealthy plantation owners. Whites who didn’t own slaves—which were the vast majority of them—were hurt by slavery.
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.
Read the list and try to find a single non-WASP family: https://www.forbes.com/families/list/