Mondo and his family took the best deal on the table. This happens in business every day and we don't start threads griping about John Jones, born and raised in Seattle, had an offer from Microsoft but he decided to work at Apple in California. Traitor to the Pacific Northwest!!!
Let's be blunt: Sweden takes better care of athletes. They offer development funding in addition to whatever you can gain in sponsorships and the possibility if local tie-ins/sponsors is greater for track athletes. Why? Because Swedes follow the sport, not just every four years like 'Muricans. Why take a Nike deal with reduction clauses and the knowledge that they will jettison you once you turn 28 or right after your second Olympics? The kid and his family got paid, enjoy celebrity status in Europe, and are very successful.
National borders are artificial constructs. Historically, nationalism creates more harm than good. Most fervent nationalists in our country have no clue what that means or what the nation stands for. They wear it like a football fan wears their team jersey to a game - blind allegiance and group belonging.