If Ratzinger did not commit a any criminal acts, himself, he won't be tried on criminal charges. If anything, remaining as Pope might technically give him diplomatic immunity as a head of state. As Pope Emeritus, who knows. If he stays in the Vatican, I don't know the extradition rules.
The clergy who committed the molestations are criminals. The clergy who protected them were grossly misguided whose actions were against the tenets of Catholicism. Surely such action is a slam dunk civil case. Did Ratzinger send a memo or directive to say, Cardinal Mahoney in LA to protect these deviant priests, I don't know. Ratzinger, prior to being elected Pope, did head the Church committee dealing with these cases. I get the feeling he was the Church fixer. The GUARDIAN article you refer to reports the victims group is blaming Ratzinger, but that is not much different from the story 2 years ago in the NYT.
Framed in this context, I think Ratzinger is taking the fall and the responsibility for the abuse, just as Mahoney is taking the fall. He may well be guilty of a cover up. The Church will pay. The next Pope is going to have to be squeaky clean and untouched by any of this. More heads will roll.
Now, about making fun of the role of Pope. I think it's disrespectful and I am not a Catholic. You would demand similar respect for your beliefs, religious, or if an agnostic, your political beliefs, which are quite strong. The mockery undercuts any intellectual or moral high road your other arguments may have.
Edited Feb-16 by marvelousmarvin
Edited Feb-16 by marvelousmarvin
Edited Feb-16 by marvelousmarvin
Edited Feb-16 by marvelousmarvin