Anthony Johnson is not really a great example if you’re trying to make some sort of racial equality about slavery. Johnson himself (or, to be more precise, his heirs) lost all of his property because he was black. Upon his death, the state of Virginia seized his land, and a court stated that it could be seized because Johnson was a “negroe and by consequence an alien.”
And because the Commonwealth of Virginia pre-dated the U.S.A., it's not our country's fault. It's the British!
Never let the facts get in the way of a good story.
I don't have time to gather citations right now, but I believe it is axiomatic that all races have been enslaved at some point in history. So as bad as slavery is, no race can claim unique suffering. At most, American blacks can claim the most recent suffering, Anthony Johnson notwithstanding. To lay this degree of mortal blame at the feet of a single nation for a global practice that long preceded it is sophistry for some other purpose.
“Anthony Johnson is not really a great example if you’re trying to make some sort of racial equality about slavery. “
Yes, he is. He started it all in 1655. Slavery was outlawed prior to his demand to enslave a fellow African.