Scholarly work regarding the post-reconstruction status of blacks in the South is accessible, quick and easy to read. Quite a few people, particularily Americans, have modern political agendas to promote in the popular media--both black and white.
As a result, people hold on to what it is they "THINK" they "KNOW," and what the popular media, generally decades behind scholars, tells them in tasty sound bites fit for masses to BELIEVE about slavery in the United States:
the supposed physical brutality (counter productive),
the organization (loose), participants (anyone who could make $$$ at it black/white/jew/asian/religious/aethist/ ) and most importantly the economic benefits (huge) etc. etc. etc.
The use of skin-color as culture is quite amusing. Nice that things are so monolithic. Makes it easy digestion for the hungry masses.
Like all things, forget what you think you know.
(edit added)
For those who won't read the stuff...
If you want to look at quite a few of the modern problems:
1.) Reconstruction after the Civil War, and specifically the "Battle of the Lost Cause," in the South
that explain the current political status of blacks versus other ethnic groups. Trace and study the protection given to black citizens in the U.S. from 1890s to 1960s. Pretty aybsimal...more effect after slavery than the pyschological impact slavery itself.
So, forget that "all people were enslaved bullshit."