some things are being taken for granted by both of you. ie the % of participants,,,,either way. not that many americans to go asia, and not that many asians come here.
i can say this,,,,,,,that you've only seen the tip of the iceberg with the asians. china has a gazillian people they have yet to unleash. there is nothing in pool that makes any physical attribute an advantage.....this ain't basketball or football.
so then it becomes a matter of upbringing and pure numbers. asia has a better system in place for spreading knowledge. there is no such system in the US, and everyone here is on his own. and as for numbers,,,,well,,,like i said,,,,there are a gazillion people in china.
there is also the class system in other countries that is not as predominant here in the US. in other countries, you are born into an economic caste, and it is difficult to rise above and be successful. SPORTS IS ONE OF THE WAYS TO DO SO. here in the US, there are many other ways to build a successful career for oneself, and POOL sure ain't one of them.
so all in all, the asian and other countries provide a better breeding ground for success in pool.