>3rd world sweatshops
Jeez man, Arizona isn't that bad, I wouldn't call it third world [1]
Jokes aside, you are correct that Facebook does have lots of third-party contractors that do moderation located in underdeveloped countries and Facebook seems to exploit a lot of their contractor labor, regardless of where that labor is located.
[1]: https://www.theverge.com/2019/2/25/18229714/cognizant-facebo...