If you count population int the factor, then the United States trumps all. We probably have more people playing soccer than in all of Europe and, for that matter, more facilities/soccer facilities at our disposal. By that formula, the United States should dominate soccer.
It's not about population, but about player development, preparation, and strategy. When I think of English soccer, I think of a bull in a china shop. Premier League is a lot more physical with less emphasis on finesse/ball handling than Serie A and La Liga.