We must remember only a handful of people in China are bred as chess players , the rest are bred as a superior factory workers.
You cannot say they are under represented as only about 5000 Chinese are bred for chess every 4 years. In reality they are super well represented.
Any nation that does not use the Latin alphabet are world class at chess if they try and get funded.
Russians, Jews, Chinese, Indians
The Latin alphabet has kept more people from achieving GM than the amount of people not speaking German in Brazil.
It takes on average 4700 hours of study less for a Jew to become a GM than say and Englishman.
Source?
What do you mean ‘ source’?
For real man, the evidence is all around you. Jews, Russians and other non latin alphabet types have dominated the chess world for ages. How much evidence do you need? You can’t stick your head in the sand to reality until someone gives you a source.
You seem to be suggesting a causal link between use of a particular alphabet and chess success. That needs backing up with a source. As does the claim that Jews need 4700 fewer hours to reach GM level.
Further, while Russians, Jews, and Russian Jews do seem to have a track record of success, there has only ever been one Indian world champion, and no Chinese. This from a combined population of 2.5 billion, or more than a third of the global population.