oh boy. ‘every black’ didn’t have a US history of slavery and the US is not responsible for every downtrodden soul in the world with a grudge. If an honest conversation about slavery is to be had, before even broaching the million Europeans kidnapped into slavery, maybe it could start with why blacks owe blacks reparations:
http://latinamericanstudies.org/slavery/perbi.pdf
Free blacks also owned slaves. And it was other Africans that sold the slaves from Africa. And blacks in the north were not slaves - they were free. How do we determine who is descended from who when doing these theoretical “reparations?”