> Except the proportion of paedophile priests is about the same as the proportion of paedophiles in the general population.

I doubt you have any reliable statistics about this, given how many victims keep silent out of fear.

But in any case, the moral failure of the church was not the existence of individual abusers (which indeed can exist anywhere in society), but how on an institutional level known abusers were protected by the curch. Everyone who was part of the cover-up (which went all the way to the top) is complicit.