"The United States was built on slavery" is a silly premise even if it was objectively true (it's not). It asserts the idea that the only way any accomplishments that were (allegedly) done by slavery would not have been possible without slavery. If a specific building was created with the use of slave labor, it is not as if it would be impossible to create that same building in the absence of slave labor.
The same thing happens with "black inventions" when a black person just so happens to be a part of a team that created an invention. I don't buy for a second that every member of a team trying to create something is always unique and irreplaceable. Especially not someone who is merely playing a support role in the process.
A higher percent of Sephardic so called Jews owned slaves than white so called Gentiles in the United States of America
People have tried to debunk a book called the secret relationship between blacks and Jews and they usually list the percent of so called Jews that own slaves and accidentally confirm Kikes owning slaves in their process of debunking
The Atlantic and multiple articles on "My Jewish Learning" have done so
I have already posted them in old posts
