Sweatshops aren't anything like slavery.

That's just an area where the cost of labour is worth less to the employer than minimum wage. There are a lot of jobs like that which is why employers are replacing them with tech where possible. If you take such a job you usually have other issues which mean you don't mind earing less, such as having a husband who works.

Where slavery exists is in very poor counties where working for food and lodgings isn't considered a bad deal and among the very rich, like the Arab princes, where they can just keep paying wages for endless shit staff without any worry of the cost.