I would also add that Singapore has a very well controlled domestic help program, where people from poorer countries in Southeast Asia ( e.g. Indonesia, Vietnam, Philippines ) can come and work as Domestic help to make money and send home to families.
However, these workers have to apply the LEGAL way and are NOT CANDIDATES for immigration.
Thousands of LEGAL domestic helpers come to Singapore to work every year. Many go home and then come back by the usual legal route when they need more work and when there is a demand for their service.
I thought we in the USA had a program similar to this called Bracerros. How did that come to and end ??
During the Johnson administration. LBJ cancelled the bracero program as a pay-off to Cesar Chavez -- who wanted those farm jobs reserved for his National Farmers Union (largely resident Hispanics).
It's ironic to see so many illegals (and people who support illegals) invoking Cesar Chavez' name. He actively worked to keep them where they belong -- in Mexico.
Chavez was a real scum-bag -- though I speak as somebody his organization illegally picketed. And, for good measure, I was shot at, as well.