Look at China’s rank in the survey, and then consider how China grants only a few hundred permanent resident cards per year:
https://news.cgtn.com/news/2020-03-24/Is-China-moving-to-loo...
Compared to the US, which despite its bureaucratic pitfalls and inefficiencies grants over 1 million green cards annually:
https://www.boundless.com/blog/biden-immigration-bill-increa...