I think everybody accepts that most germans are ISTj's, most americans are NTs, most brazilians are xxxps and so on.
Is it related to natural selection, which is related to the climatic conditions or the economic system? For instance, moroccans are mostly beta STs, and they are so because they have to "survive" in the desert, which is anything but welcoming, thus they re physically stronger than others. Norwegian males are mostly ethical types since women have the best jobs there and they need someone to care for them...so logical males don't get laid there
Another example, Spain is extremely , which makes young people not to join the university and get a bad job in order to get some money ASAP to buy cars and show off

Any thoughts on this?