There have been such evil behaviours far and wide, and even amongst the clergy--not limited to Catholics by any measure.
That does not make the actions of those individuals--especially as a breach of the faith they individually profess and the position they abuse--justifiable in any sense, nor does it mean that the entire body of the Catholic Church, throughout its history should be condemned by the actions of a few who abused their positions and the trust inherent in those.
There is no call for anyone to paint with a broad brush all adherents to the Catholic faith as if they were the ones who committed the acts in question, nor is such any more justifiable than the acts they decry. We all view those acts as abominable.
I think the conflict stems from blaming Catholicism and the Catholic Church for the actions of a few people, actions which are actually contrary to Catholic doctrine.
Until our Saviour returns, there will be evil afoot on this planet. It is up to us to individually choose whom we will serve.
Only the Catholic church gave them cover from the law and moved them to different hunting grounds..