(Credit: Shutterstock/Mincemeat) For days now, Donald Trump has been obsessing — not about the 3 million-plus American citizens in dire straits after Hurricane Maria devastated Puerto Rico, but the refusal of black football players to submit to his demands to stop kneeling during the national anthem. The continued refusal of the players to back down, or of the NFL to force them to stand or kick them out of the league, has driven the president to one of his most sustained temper tantrums in recent months: The issue of kneeling has nothing to do with race.