The history of slavery spans many cultures, nationalities, and religions from ancient times to the present day. However the social, economic, and legal positions of slaves were vastly different in different systems of slavery in different times and places.
Slavery can be traced back to the earliest records, such as the Mesopotamian Code of Hammurabi (c. 1860 BC), which refers to it as an established institution, and it was common among ancient people...
Although slavery is no longer legal anywhere in the world (with the exception of penal labour), human trafficking remains an international problem and an estimated 25-40 million people are enslaved today, the majority in Asia.
Slavery is absolutely ubiquitous across both time and cultures.
Instead what I'm seeing is ad-hominem bigoteering that attempts to ascribe bad faith, nefarious motives to someone even bringing up historical facts that can be looked up by anybody with access to the web or a library.
We pretty much are. And a lot of this weird ahistorical 'contrarian' message board stuff about slavery might not seem like marching with torches but it tends to originate from the same places - as a way to rationalize and recruit for the ideology of the marchers. It's a sell job, not some clear-eyed, unflinching take on history as the people who tend to repeat this stuff often appear to think.