I don't know already, it's the same arguments repeated over and over.
It simply boils down to....
There are those of us who accept the defined doctrines, Scripture, and all the other teachings from the highest authorities in the Church (and everything associated with those teachings that we must believe), and therefore cannot in good conscience accept a BOD because a BOD contradicts all those things regardless of the lesser authorities (great saints, catechisms etc.) who taught otherwise.
And there are those who believe defined doctrines, John 3:5 etc., but are convinced that all those teachings have exceptions built into them somehow, which apparently, is why they not only see no contradiction whatsoever, instead they're convinced a BOD is a doctrine of the Church.