However, Unam Sanctam does not allow the Roman Catholic that option.
Unam Sanctam was a far reaching power grab of the pope over all aspects of life.
Nor does the "ex cathedra" defense come into play in attempting to avoid the command of the bull.
You say the pope's teachings not in accord with Scripture guided by tradition and reason, are not to be followed.
However, there are examples in Roman Catholic history where the pope has issued statements that go beyond Scripture.
As the laity in Roman Catholicism cannot render their own judgment of either Scripture or the accuracy of a pope or "tradition".....how do you judge what your pope is saying and doing is wrong?
If you would give an example or examples of ex cathedra’s that went contrary to Scripture and established tradition, I will answer. Otherwise, we’re talking theory. And make sure the examples are not “theological”, but actually critically impact whether a soul would end up in a state of grace or not. Thank you.