From Letters to a Young Doubter by William Sloan Coffin:
Why then do so many judge religion by the worst examples of it?
I think that’s a fair question. Why do so many people judge religion by the worst examples rather than the best? As Coffin notes we tend to judge the value of “poetry, novels, art, and music by their very best works.” My first thought was that there are so many more bad examples than good, but on reflection, I’m not sure that’s true. I can only say that in the religious field, the worst examples have somehow become far more prominent than the best.