You:

For example, Saudi Arabia, a widely known example of a monarchy with absolutist power, has 80% of the population composed of immigrants without rights who get stripped of their passports and get treated as slaves.

Also you:

When 40%ish of the population is without basic human rights

Wanna try again?

Then you:

There's no public healthcare

https://en.wikipedia.org/wiki/Health_care_in_Saudi_Arabia

Health care in Saudi Arabia is a national health care system in which the government provides free universal healthcare coverage through a number of government agencies.

Then you also:

no infrastructure for poor people (trains, public schools, people-centered urbanism...), etc.

https://en.wikipedia.org/wiki/Education_in_Saudi_Arabia

Public education in Saudi Arabia—from primary education through college—is open to every Saudi citizen. Education is the second-largest sector of government spending in Saudi Arabia.[7] Saudi Arabia spends 8.8% of its gross domestic product on education, which is nearly double the global average of 4.6%.

https://en.wikipedia.org/wiki/Al_Mashaaer_Al_Mugaddassah_Metro_line

https://en.wikipedia.org/wiki/Riyadh_Metro

There are several other line being planned.

I thought it was 80% migrants? Also, except for the bit about permission to leave country (crazy, imo) that sounds like a normal work permit in many conventionally democratic countries, where employer also uses it's power over migrant workers. It might be worse in practice, of course, that depends on courts

You tankies are a different brand of stupid, aintcha?