Again, I'm not excusing anyone. I'm just saying that social norms can change in a relatively short period, and although today, most people working with children wouldn't dream of staying quiet if a colleague were interfering with kids, 30 years ago, when sexuality, and especially same sex sexual activity was much less talked about, I can understand why there would have been a culture of institutional silence.
It wasn't just silence or failure to report the abusive priests to the police, most of these bishops kept the priests in ministry where they could abuse more kids. They didn't even defrock them or send them off to a cloistered monastery where they wouldn't have any more access to kids. They kept them right there in the parish or put them in another parish where they could lead the church youth group and take them on camping trips if they wanted. It's hard for me to imagine any cultural context where that's okay. But it happened a lot, and not just 30 years ago, Bishop Myers of Newark had reassigned a priest with this type of past to a parish within the last decade or so- he told the other priests to keep an eye on him, but the priest in question still wound up involved in youth group stuff overnight out of town. Some of these bishops need to spend some time in a jail cell. And then they need to be defrocked or at least kept out of positions of authority. They clearly do not have proper judgement to make decisions about where priests are assigned as it pertains to protecting the children of the dioceses they are leading.
At one point, over 50% of active bishops in the US had been involved in a sexual abuse cover up, and there problems in Australia that we're discussiong in this thread, and there were huge problems in Ireland as well. None of them have been fired, though one resigned over what might have been stuff related to this issue (and of course some have died or retired at the customary age with no punishments on their record). The guy overseeing the bishops while this was at it's worst was JP2, and the Church fast tracked him after his death and declared him a Saint within like 5 years (Joan of Arc waited like 400 years). The culture of corruption runs dead in the Roman episcopate.
I've been encouraging people to refuse to contribute to their parishes for years over this issue and drop a form letter in the collection plate talking about why. Maybe that would have gotten some of these rogue bishops fired, if enough people had stopped contributing to the Church.
You know, it's nothing against bishops as a concept. Even when I was a member of another church for a few years- it was the Episcopal Church, a Church with bishops who rule over dioceses wearing miters and having other traditional trappings of a bishop, and who claim Apostolic Succession. However, the Episcopal Church doesn't tend to have problems like this because there is lay involvement in church governance on a continuing basis on all levels in making decisions that effect parishes, dioceses, and the national church. Plus, elected vestries (parish councils) of self-sustaining parishes select their priests (Obviously out of a pool of ordained Episcopalian, Anglican, or [Thanks to an ecumenical arrangement] ELCA Lutheran priests, not just some guy or gal) in consultation with the bishop, and the people of the diocese pick their bishops subject to the approval of the national church bishops and lay representatives from other other dioceses (And then if the bishop selected is a priest rather than a bishop, other bishops consecrate [ordain] him a bishop before he takes over as head of the diocese). I think that system was great. I'm not saying that church never had a problem of any kind with child abusers- but with lay people involved in day to day decisions and oversight and there being so many checks and balances, there is no way a national scandal of this magnitude with bishops covering up for abusive priests and reassigning them would have happened. They'd have been gone.
Why couldn't the Pope remove these RC bishops from positions of authority? He'd have done it in a split second if they ordained a woman or an openly gay man with a partner to the priesthood. But JP2 never to my knowledge ever removed a bishop from a position of authority over his facilitation of child abuse by priests. Cardinal Law was transferred to the Vatican, but only under intense pressure after many years, when there is some thought he might have been criminally charged had he stayed in the US, and Cardinal Law he was there at JP2's funeral in a prominent place a few years after that.