Well it still exist everywhere, when most have less chances for educations than the elites which result them to work for the rich 1% elites at a minimum wage job to barely survive. what do you call that ? I call it modern slavery.
OK, not quite sure where you are referring to here. This is true in many places, largely due to the types of government but there's not a huge excuse to not have at least a reasonable level of education in a first world country, regardless of what is provided. The closest thing to slavery here is property taxes which require one to have an income to keep the land one supposedly owns. The second closest is debt which is usually a self generated problem (typically encouraged by government policy).
and don't tell me it is not possible to have a better system, yes someone has to do that Job, I agree on that, but that one has to be fairly paid, take Switzerland as an example, I love their payment scheme.
Fair is both sides sticking to what is agreed. If it's a necessary job, the payment is there. If you find yourself in a huge pool of unskilled workers such that the offered for a particular job is low, with rare exception, that's on you.