There are no bishops on the record as "supporting pedophilia".

You correctly state that one of your sons left the Church.

What you have not established is that the reason was anything other than his own free choice and a mature adult recognition that if you don't follow the rules, you shouldn't pretend to be in the club.

One assumes that were he to seek an annulment, the Church would work with him on it, and that if he corrected his situation and went to Confession, absolution would be given.

That's love and mercy.

Endorsing sin is not.