What's surprising to me is that it's become more common to describe people you dislike as subhuman and to for people to support violence or cruelty toward them. Similarly there is a trend to see hatred and anger as positive goods.
“ Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.”
So one might say, slavery is normal in the USA
If you spend pretty much all waking hours dedicated to some task you don't care about entirely to avoid dire consequences I'd say you are close enough. People might still want to use a different word to describe the same thing but it requires they care more about appearance than substance.
I think you underestimate the "normal" labor conditions in some places.
There is nothing remotely comparable between slavery and a modern job. Feel free to make a more substantial argument as to how they are than "it's close enough"