It's the difference between cultures with High Individualism vs cultures with Low Individualism.

Not necessarily.

I do see that for a Constitutional Republic to function you would need an average IQ between 105 en 115.

Why? Well, average IQ in China seems to be over 120. It furthers, I think, a certain type of thinking too technocratic. ( See also the IQ-levels of Nazi-leaders). I do have to point out one other characteristic in the case of China: Confucianism.

When the Average IQ drops below 100, conceptual thinking and planning goes out the door due to changing time-preference. (see an IQ map of Middle East and Africa)

This also explains the hate whitey and white supremacy thing. It is a goldi-lock range allowing for max freedom and healthy time-preference.

IQ trends higher in colder climates... Japanize, Koreans, and some Chinese. The Philippines people have that must send the kid to college thing going on and its so alien to how it works here.Public schools there teach almost no history or geography, but teach Filipino, English, and local languages. They wear uniforms, say their pledge to the flag, sing their national anthem, and have prayer, every morning at the flag raising ceremony.

Its the norm in college there for the bill to creep up constantly. 2 times a semester they won't let the students take a required test unless the payments are up-to-date. Still far cheaper than in the USA. Student we sponsored was about 600 a year, but 4 times a year it would creep up and end up being another hundred or so. I looked at the bill and there was a misc charge, and 2 charges that said other, all 3 had no explanation. KEK