It would be really interesting to see where you got your moral theology education from. Of course, even if the 30 percent figure were accurate (there is no way to verify this), divorced priests would cause scandal publicly, whereas those who violate their chastity vows are not doing it publicly.
Do you understand the scandal divorced priests would cause? And I guarantee you there will be more divorced priests than the average population.
There's no point in arguing this. You have no idea how many divorces married priests may or may not have. I can tell you, there are very, very few divorces among permanent deacons.
In fact, if you want to lessen the number of divorces, don't ordain any married man under 40 to the priesthood.
Either the Church will allow married priests, or it won't.
It is interesting to argue both sides, however, which is what we're doing here. But, ultimately, the decision is out of our hands.