You want an answer, I have it. They drive in the left lane because there are no cars in front of them, They are frightened people who are afraid when cars are in front of them. They know in the left lane they are moving slow and faster moving cars pull away from them leaving a clear lane.They dont have the good sense to worry about whats behind them as long as there is no one close in front.
They are liberals who want your to stop smoking and speeding.