I have done that, actually, and never get an answer. This is what I generally ask:

How many 'individual cases' of church officials perpetrating and enabling child rape does it take for that to reflect on the organization? Is that more or less than it would take for a secular private school? Is that more or less than you'd allow for a charity working with poor or disabled children? Is there any point at which you'll hold the RCC as an organization accountable for the actions of its steering members? Or is what you really mean to say that they cannot possibly be bad because they're a church and damn all evidence to the contrary?