Why does USA amateurs suck at amateurs ? But then shine as a pro ?

[Britkid]

The UK had the London Olympics; there has been lots and lots of investment put into all Olympic sports and boxing has taken advantage.

The connection is, the US post the collapse of the Warsaw pact has seemingly lost interest in the Olympics and this has cost the amateur sport. And when the US is not successful at a sport it seems to die off for them, boxing is slowly going that way.

[Master]

So the key in investment and exposure of the sport results in better talent attracted to the game.