>>509330292 (OP)For a few reasons but it's not as if Catholics are really unique, they just got more attention with the scandal about them knowing and moving priests around to hide it.
Really any religion or other powerful organisation just provides the opportunity for abuse and opportunity IS the main factor. Sadly there are just some people out there that would take advantage of a child given the chance, so we see examples most with those positions that give that chance. Family members/family friends, positions of authority and access like teachers, priests, community leaders, etc.