In the modern world we have Qatar and other middle-eastern countries that trick migrants into coming in to work on their massive projects in the insane heat, se

In the modern world we have Qatar and other middle-eastern countries that trick migrants into coming in to work on their massive projects in the insane heat, seize their passports and basically have them "work or die". They are paid but aren't they technically slaves at that point if they cannot quit? https://www.theguardian.com/world/2013/sep/25/revealed-qatars-world-cup-slaves https://www.theguardian.com/world/2013/sep/25/revealed-qatar... What if pyramid workers were like that? Came and started to work, realized the insanity of it all and wanted to quit but if they did they would be killed, starved or blacklisted?