What about baseball travel teams? Our kid plays travel soccer and it is expensive no doubt but our baseball parent friends pay more. I don't hear anyone complaining that baseball is pay to play.

Also, from what I hear hockey is also extremely expensive. I've heard that you can't leave a sporting goods store without spending at least $1,000 on gear alone for a season. I've yet to hear anyone complain that hockey is pay to play.

I think the other commenter has it right, most kids just gravitate towards American Football, Baseball, or Basketball.

And in the state I live in, of probably the top five soccer teams, one is a private school, the rest are public.

Edit: I don't know if other sports are like this but so many soccer parents are just extremely unrealistic/toxic. So many think they have the next superstar, questioning the coach on their child's play time, whey their kids didn't get placed on higher leveled teams, questioning why a coach is running practices certain ways.

Isn't the contention that, because football is pay to play in the US, the US isn't that good compared to places that it isn't pay to play?

Baseball, basketball, American football are all sports with much less international participation, and generally require pay to play elsewhere at around the same level as in the US, because of the way the sports are. There's no refutation possible from that.