> Japan is a good real world example that you do not need to lean on immigrant labor to stop your country from becoming "dirty"
Japan heavily utilizes foreign workers via a Gulf style guestworker program, and even that has led to the far-right Sanseito becoming Japan's highest rated opposition party and the far-right wing of the LDP winning internal party politics.
> via a Gulf style guestworker program
They get to keep their passports and can return any time, calling it Gulf-style is a bit much. There are abuses - so are there in Europe - but it's not like they sacrificed a thousand or so immigrant worker lives on the Tokyo Olympics in Qatar 2022 style.