Earlier quoted context omitted.
Is there actual evidence that a homogenous population results in better economic output? That sounds like literal fascist propaganda to me.
China's population is not homogeneous, and neither is Singapore's. Singapore has large Indian and Malay ethnic populations, China's got dozens of ethnicities and the main Han ethnic group is really a mix of different cultural and ethnic groups where the best analogy is how "White" people in the US are treated as the same ethnic group despite originating from dozens of European countries. No population is truly homoge…
Here is a good video of `Lee Kaun yew` on why single language is important for development of country.