If you’re conflicted about the morally challenging game of football, you’re a wimp, a hater and roundly un-American. I know this, because each year before the start of football season I hold the mirror to all of us who love to watch on Saturdays and Sundays and that’s the response. But what does is say about us that a game known for crushing bodies and maiming minds is America’s sport? “Move to Europe,’’ was one representative reader’s email last year. The current state of football is this: A player is hurt on the field, carted off as players kneel in prayer, and the visceral pain felt by everyone demands ending the game, a move not just applauded by all but barely discussed afterward. The good news is Miami Dolphins receiver Daewood Davis didn’t suffer a catastrophic injury in Jacksonville near the end of Saturday night’s preseason game.