Thirty-three men between George Washington and John F. Kennedy served as U.S. president. Until Kennedy, all were white Anglo-Saxon Protestant men. It took 172 years for a Catholic to win the presidency.
There is a thought experiment in moral philosophy, made famous by Philippa Foot, called the trolley problem. Imagine you are the driver of a runaway trolley that you can steer but not stop. Up ahead, the track forks in two.