Btw. In the last few years german scientist researched the topic of why different ethnicities integrate better or worst in the german society.
It's called...The Bell Curve...
https://en.wikipedia.org/wiki/The_Bell_CurveAnd:
https://en.wikipedia.org/wiki/Mainstream_Science_on_IntelligenceThere's a saying/principle that two people with more than a 20 IQ difference are unable to communicate on any meaningful level. It applies to things like marriage, but in building a civilization as well. If two different groups lived apart and mud huts were the only thing one group could build while the other could build space stations, they aren't going to integrate. In Australia they have Aboriginals which are literally modern day cavemen. Their govt has bent over backwards to try and integrate them into society, but they have the lowest IQ on the planet (something like 60-70), so it always fails miserably.
A bigger factor is that children from third world placed in first world generally excells when given similar opportunities because natives feel sense of entitlement while immigrants relish the chance to participate freely.
I believe that the outperformance (by kids from poor countries like India, China, and perhaps Pakistan & Bangladesh) seen at US universities can be explained differently.
It is VERY hard to get into US universities on scholarship for poor kids from poor countries.
The ones who actually DO make it in are typically ONLY the very smartest and hard-working ones.An example: I was studying statistics, had just started the second semester class at the Masters level. The professor was from Bangladesh. I had a health problem come up at the end (herniated disc at 48 years old), it was BAD, and I was unable to study for the Final Exam (50% of the grade). I asked for a day or two longer to better study as I was on painkillers, it hurt (later I had to be operated on, ugh). He said NO.
So, improperly prepared I took the Final, failed it, and got a "C" for the class (equivalent to an "F" in grad school).
At other earlier times I had heard stories about lots of whiny undergrads bugging their professors about papers or exams. So, I have to believe that my professor was likely TIRED of hearing about student "problems" and just decided that I was a whiner too. Naturally I was pissed-off...
Later on it occurred to me that this professor from BANGLADESH had
probably busted his ass for many years to get trained up, learn English, then win a US scholarship to get a PhD, then land a hard-to-get position as a prestigious professor. Perhaps clawed his way out of some shit-hole ghetto (perhaps not).
Almost surely that professor had to pay higher dues than I did. He succeeded whereas I did not. Of course, he would almost surely be a definite minority, "off the charts" guy from a dump like Bangladesh.
Exactly what i was saying.. in general the power of the thought of leaving the third world itself is enough to motivate people to do well especially versus peers who are not motivated the same. Yes even brighter third world students will be even better.. theres a reason nasa ibm and microsoft do most of their software in India for example.