Rory McIlroy, the visiting lightning rod, kept stepping off shots as volleys of abuse landed in the quiet of his pre-shot routine. Justin Thomas, not exactly a shrinking violet, began shushing his own end of the grandstand so his opponents could putt. There’s a difference between atmosphere and interference, and Bethpage spent too much of the weekend blurring the two. That doesn’t make the Ryder Cup a referendum. Too often, though, they were drowned out by the performative tough guys in flag suits and plastic chainswho treat the Ryder Cup like a tailgate with better lawn care.