The ignorance manifest in your response only demonstrates your failure to read the article on necessity, leaving you willfully ignorant in the matter.
I'm sorry, but I don't know which article you are referring to. Please give me the link or the post number where it's linked. I would be more than happy to interact with it. Who wrote it, and when?
Had you read it, you would not have made such a foolish comment purporting to limit the scope of the excusing cause of necessity against juridical and doctrinal acts of the pope.
We'll see just how "foolish" that was.
According to your rationale, St Athanasius would have either been forced to back Pope Liberius in his signing of the docuмent favoring Arianism, or declared the See of Rome vacant.
I prefer to take St. Robert Bellarmine's position on that:
"Then two years later came the lapse of Liberius, of which we have spoken above. Then indeed the Roman clergy, stripping Liberius of his pontifical dignity, went over to Felix, whom they knew [then] to be a Catholic. From that time, Felix began to be the true Pontiff. For although Liberius was not a heretic, nevertheless he was considered one, on account of the peace he made with the Arians, and by that presumption the pontificate could rightly be taken from him: for men are not bound, or able to read hearts; but when they see that someone is a heretic by his external works, they judge him to be a heretic pure and simple, and condemn him as a heretic."
(
http://www.sedevacantist.com/bellarm.htm)