If Mexicans didn't turn pro at 15 I think they'd rule Olympic Boxing.

[rjj tszyu]

They're also two different sports altogether. If you look at the list of countries with the most Olympic boxing champions, versus the countries with the most professional boxing champions..... the lists are entirely different.

Mexico is 2nd in pro champions, but not in the top 20 in Olympic champions.
Japan is 3rd in pro champions, ditto on Olympic champions (not in top 20).
Puerto Rico is 6th in pro champions, ditto on Olympic champions.

Then there's Thailand, the Philippines, etc, etc, etc.

The whole argument goes out the window.

I think a lot of the above is down to funding. Plus you should really mention that the U.S. is top of both if you are to make that argument. Also the fact that cubans don't tend to become pro's has a major bearing on these facts.