The Gulf states take in a lot of migrant workers, who have basically no labour rights there.

https://www.ilo.org/regions-and-countries/arab-states/united...

"The UAE hosts some 8.7 million migrant workers – equivalent to over 80 per cent of the country’s resident population – making it one of the largest foreign labour-receiving countries in the world. With Emirati nationals mainly employed in the public sector, migrant workers constitute the bulk of private sector employment"