Singapore numbers ignore their underclass, which is significant. But you're right, if you're a westerner, Singapore's great.

Any 'underclass' also contributes to GDP and consumes healthcare. How is any of this ignored?

But yes, I agree that the US should let in more migrant workers. Good for the workers and good for the target country: cheap infrastructure is great!

I wish the US could also use migrant labour like Singapore instead of the current system of turning a blind eye to illegal immigration out of necessity