Are you suggesting that because there is some diversity on the the field that the young players weren't raised and developed in the pay-to-play system? All of the players on the USWNT roster under the age of 27 other than Lily Yohannes (raised in the Netherlands) were developed by ECNL clubs (the most expensive club league in the country). You might also want to look at the rosters of the US youth national girls teams where every player is from an ECNL or GA club (the two most expensive club leagues in the country).
Jaedyn Shaw (Solar - ECNL)
Korbin Albert (Eclipse - ECNL)
Hal Hershfelt (Corcorde Fire - ECNL)
Trinity Rodman (So Cal Blues - ECNL)
Jenna Nighswonger (Slammers - ECNL)
Sophia Smith (Real Colorado - ECNL)
Naomi Girma (De Anza Force - ECNL)
Catarina Macario (San Diego Surf - ECNL)
Sam Coffey (Match Fit Academy - ECNL)
Tierna Davidson (De Anza Force - ECNL) - Yes, our starting CBs both played for the same ECNL club
Mal Swanson (Real Colorado - ECNL)