Everyone here knows the information that you just posted, but it was irrelevant to my post.
You began your reply with an impossible scenario.
And, no, “everybody” does not know the information I posted. Quite a few people believe the United States has sole responsibility for slavery in the world. These are the same people who believe the United States has existed for over 400 years. The ignorance is astounding, particularly so when dealing with a topic so heavily freighted with leftist propaganda.