Well you haven't said what the 'big problem' is. They have 2.4% unemployment, excellent infrastructure and like I said respectable per capita GDP growth (higher than ours). What's not to like about that?
And we are a long way off the Japanese situation with a much higher fertility rate and mass immigration as well. Even if we had zero NOM our population would still grow for a couple of decades before stabilising and going into a slow decline.