You must like to bang your head up against a wall too.
So the only thing that can happen bad on a run play is it gets stuffed? What if the QB and RB fumble the exchange? What if the RB fumbles? What if the RB trips behind the line? What if an OL steps on the QB's foot as he is turning back to hand the ball off?
Lots of things can go wrong on any given play. To use that as your reasoning for selecting a running play that hasn't worked all game long is weak, IMO.