> Look how the Gulf states deal with citizenship and they manage to control much bigger immigrant relative to the native populations.

The gulf states, really? Why am I not surprised that you point to one of the largest modern day slave states as an example. I will not grant you the assumption of ignorance. For anyone else following this conversation, ReptileMan here is pointing to this system - https://www.humanrightsresearch.org/post/modern-day-slavery-... - one widely recognized as slavery - as an example of a good way to control large immigrant populations.