Nobody will confess to those sins if they are not confidential. The only ones doing so will be reporters
or prosecutors to see if they can catch a priest not reporting them.
Seriously? Obviously you have NO clue what your words expose. Do you think for one second that our Heavenly Father is not recording these evil deeds... By the perp and the fake priest that refuses to turn the criminal in? How much does it cost to 'confess' crimes against children? None can claim these acts come from Christ.. . well there is, as it is written a fake Christ. Catholics have a stay out of jail card, held by the local priest?
The confessor is completely free to tell the penitent who confesses that he has abused someone that no absolution is possible unless he turns himself into the police, therefore, the abusers won't bother to confess their sins. (If they actually believed in the faith, they wouldn't abuse to begin with.)
The persons whose confidence the law will break, practically speaking, are the victims who mention abuse in confession.