Did they repay Czechoslovakia bringing up Lendl or Navratilova? Did they repay Yugoslavia for bringing up Seles?
No? Then stfu USTA mugs, go bellyache elsewhere, not on my computer screen please.
And yes, Bogomolov has played under USA flag for several years, represented them long enough paying debts by that. I didn't see whining when Cecil Mamiit switched to Philippines.