About a third of Singapore is persons who don't have Citizenship nor PR. Their public housing is propped up by making like 1/3 of the often lower earning workers (who are ineligible for public housing) pay taxes so that the Citizens and PR holders can profit.

If 'Success' is your metric, the Singapore analogy to America would be to import way more Canadians and Mexicans, ban them from public housing and then make them pay for it.