From misquoting the halftime score to the mixture of rant and lack of a substantial point, you come across as profoundly ignorant of what athletic competitions are about.

I watched most of the game. It was an incredible performance not because the US team was superior to the Nigerians, but because even in a 5-on-0 drill, you rarely would ever see that high percentage of long-distance shots being made. As for the complaint about the foot shorter three-point line, the NBA had that for a few years in the 1990s. Guess what happened? Scores and shooting percentages dropped, due to the packing of the lanes and the easier time defenders had in covering both the three-point shooters and the dribble-drive penetration.

71% shooting (including over 60% on 3's) is an anomaly in most any level of competition. What the US team did was something that they would be highly unlikely to replicate even if they were playing the Olympic equivalent of the 2011-2012 Charlotte Bobcats. Nigeria has won a game in pool play and played another competitively. But law of averages were askew in this one; generally the score, if these teams played multiple times, would be less than half of the 83 point difference.

But on a more general level, as others have said, if you are not competing, you are doing a greater disservice to the sport, the fans, and especially your competition (who is striving to be the best they can be, even when they know they are likely outmatched). The American players did not rub it in; they did almost none of the celebrations you see after a normal exciting NBA play. The road will be more difficult for them and they know it. After all, LeBron and Carmelo remember losing to Puerto Rico in the first game of the 2004 Olympics.