Recall that the U.S. is 4% of the world population:

1. China 1,394,015,977

2. India 1,325,349,639

3. US 329,484,123

4. Indonesia 272,856,400

5. Pakistan 233,431,156

6. Nigeria 213,986,428

7. Brazil 212,041,332

8. Bangladesh 162,532,538

9. Russia 142,588,206

10. Mexico 128,840,997

Many of these countries' social medias are heavily controlled by their government + they are developing countries and/or lagging behind in terms of social norm. I'm pretty sure things are changing quite fast for them though!

Every country’s social media is heavily controlled by their government or by corporations.

The thing that matters more is GDP/capita

I'm sorry but you can't compare censorship on weibo to censorship on twitter