Excellent and interesting thread.
1. It should be recalled that the number of players born in the UK and playing at the highest level is relatively low compared to the surrounding countries. If a top club has a squad of 30 players including 3 players born in the UK in a context in which between 5 and 10% of the population has origins in Asia. It is not realistic to expect a high number of Premier League players born in the UK with Asian origins.
2. This discussion is necessary tricky. Cultural aspects can not be overlooked in regards to this thread. These aspects deserve to be discussed. Generalities should be presented, refined but - on the other hand - one can argue every individual is unique and has his own story.
If we imagine a social theory that works in 60% of cases:
a) Does it mean this social theory is absolutely bullshit because it doesn't work in 40% of cases?
b) Does it mean the approach is automatically racist? I don't think
3. The issue is not to see people holding prejudices at a point in time but to have them unable to question these prejudices and generalize, oversimplify things.
For example, I can say "I'm inclined to think that 80% of French politicians don't listen to rap", which doesn't mean "Politicians are not made to listen to rap". The issue would be rather to say 'I need to recruit an expert in rap and won't consider the application of a politician because I'm sure he doesn't listen to rap'.
4. Understand the proposed subject of discussion requires taking into account the feelings/views of both Asian people and non-Asian people. Opinion from any side are the welcome to understand the full picture
5. What I understand is a lot of Asian people consider suffering from discrimination/racism in the amateur football world. The interesting thing is a small minority of people think in France small white people are discriminated against, implying tall and strong black people whatever their technical skills tend to be preferred by recruiters and coaches.
6. I think we can all agree that countries like India (1.4 billion of people) and China (1.4 billion of people) are not mostly known for their football players. The explanation #1 regarding the British case can't be 'Because of the DNA or diet regime', it's mainly a matter of cultural considerations but also social ones.
7. Terminology. Some would argue that the term 'Asian' means nothing. I imagine that 80% of Asian people born in the UK come from 3 or 4 countries? Do these countries tend to consider football in a same way? I don't know but discussing some cultural aspects is not necessarily an unhealthy thing.
Even if we’re just talking about within the UK, players of black ethnic backgrounds are waaaay over represented as a percentage of professional British footballers compared to the percentage of people in the UK population.
Some are 'over represented', some less. That's life.