We can easily quit any job we have, that is the proof that we are not slaves, there is absolutely no other reason required, if you can go to work today, and give your two week notice, that means you are not a slave. Slavery has to be being hold against your wishes and that does exist in some sweatshop parts of the world, just not around where we live. I believe in the power of individual, and the right to be as strong as possible, so many people grew up from nothing and even became presidents, and that means we need to realize things aren't going to be that bad for the individual at all.
Technically it's true, but I can understand why people say it's slavery.
Yeah you can easily quit the job we have, but we as human being need money to pay food, rent, utility bills etc. If you're born from poor parents, you're forced to work to fulfill your needs especially you're not have a degree, in the end you will work in blue collar jobs and it's similar from one to another jobs.