Victor Davis Hanson notes that one reason for American exceptionalism may be that we did not inherit from England “a large underclass of only quasi-free people attached to barons as serfs.” Sadly, a worse institution took root here, but never became part of the national psyche.(italics added)
I'm not sure what else to say. Our entire history has been deformed by slavery and race. To claim anything else is not just ignorance. It is morally reprehensible.