By Pat Forde Don’t blame the tunnel. Don’t say this is “boys will be boys.” What happened after the Michigan-Michigan State game is a mandatory reflection point for college football. Forty names, games, teams and minutiae making news in college football (sportsmanship sold separately in The Mitten): First QuarterThe Disgrace in the Big HouseDon’t blame the tunnel. That’s a cop-out, an excuse, a sidestepping of what really happened. Don’t dismiss it as a boys-will-be-boys scrape. What Michigan State players did in that tunnel was an assault, and no one should be surprised or act outraged if cha…