Tell your story to all of the boys abused by priests. Incidents that the Roman Catholic Church tried to cover up, transferring priests to other unsuspecting parishes, and paying off families.
So you let the deviant actions of individuals that don't make up one percent of one percent of the faith write off all of Catholicism for you?
Seriously?
I don't know whether to find that very sad, or merely a convenient rationalization for common anti-catholic bigotry, as it makes as much sense as your son disassociating himself from you and the rest of his family because of the actions of his grandmother.
Given the clear precedent of teachers molesting and otherwise mishandling students and school administrators suppressing the records for liability concerns, can I assume you've removed him from organized education as well? And have you taught him that all law enforcement is to be similarly written off as hypocritical due to the instances of police officers that have been implicated in acts of corruption?
Or do you only treat the Catholic church in this fashion?
But you are wasting your time trying to convince or convert me.