Again, you’re just wrong. I’ve done many years worth of research on genealogy, and most Americans are going to have at least one line, if not many, that lead back to places like Tidewater Virginia where slavery was intrinsic to the culture.
I didn’t realize that Ellis Island was required passage for Tidewater, VA folks.
For many generations, ethnics from Hungary, Austria, Poland, Italy, etc. weren't intermarrying with people whose ancestors were here earlier than they were!
I can go through every single person, on my maternal line, from the time the first Hungarian members arrived in this nation and not a one of them has EVER married someone whose ancestor was a slave owner. I have one second cousin who could belong to the DAR...except for the fact that her late husband's Irish ancestor was an Irish man in the Brit Army, during the Revolutionary War and he went home, and his family stayed there, until the 20th century ! And that's just my maternal line; I can do the same for my paternal line! Ditto the ancestors of my spouse!
I also can do the same thing for many of my friends, because we like to talk about family history.
You're dead wrong and the more you post, the sillier you look !