Chinese football’s problem is primarily twofold. Firstly, as you already identified, there is a massive talent selection problem where parents don’t dare bet their children’s future on sports and prefer academic excellence overwhelmingly over sports. So the Chinese Messi is never going to realise his football potential in that environment as his parents and school system will have been focus on his studies and have no time for his football.
The second more fundamental issue is that Chinese football is just too lucrative no matter how shit they are. It’s the only major field in China that is allowed to be too big to fail where money pours in no matter the results. So there is no real incentive to change as there is no real serious punishment for failure.
These two problems compound each other in that even if the Chinese messi is found by scouts and put into a training program, his potential will be limited by the sea of mediocrity around him. He won’t ever get to meet his own full potential because he is already king of the tiny Chinese football hill at 1% of his power.
But in a way, I think it’s actually a good thing that the national football team is so consistently terrible. It keeps the Chinese people humble and grounded, else if China is too successful in every field, it’s almost inevitable that people will start getting ‘gods chosen race’ delusions and start dragging China down, just like how entitlement and arrogance has sunk the west.
Having one perpetual national embarrassment is a small price to pay to keep the Chinese people forever humble and hungry so we stay sharp and on top.