I think you may also either be switching your questions or requiring more of my side than of yours. I can't lay out an entire argument here. But you have not laid out an entire argument either.Questions were asked, I tried to discuss them, and in particular to point out related questions. That's all.
I told you I am not a theologian, a priest/minister, a teacher, a philosopher, or a scholar. If I have avoided questions, I lack the competence to answer them.
I have no ability to lay out a comprehensive argument against infallibility; but nothing I have ever read convinces me that the Pope - or any human being - is infallible on any subject.
Nevertheless, I am a reasonably intelligent person with the willingness and capability of reading the Bible and asking the Holy Spirit for guidance. My responsibility, my desire, and my joy is doing just that.
Although I respect the RCC, I do not wish to belong to an organization that makes such a claim. To me such a claim is dangerous. You may be willing to place your faith (and your soul) in the leaders of the RCC, but I am not. I will never allow someone I do not know to decide the truth of faith.
When I joined my current church, I promised that I would accept the guidance of the church. I made the promise but I did so with the reservation (which I communicated to the clergy) that I would listen to the teachings of the church and consider them prayerfully, carefully, and thoughtfully but would not accept them unless I could reconcile those teachings with those which I read to be the truth of Scripture.
If I am wrong - and I very well may be, as I am a very fallible human being - I will stand before Divine judgment and answer for my own errors. But those errors will be mine. I will not try to evade responsibility with the claim that I only believed what someone “taught” me.