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