George,
If I reported to my wife that I was talking to someone on the internet and he said, "I know of someone in Rome who also claims to be the infallible oracle of the Church- which one of you is the true oracle?"; do you think it takes someone who is infallible to say this without starting it out with, "In my opinion".
I think it is clear enough that you made this statement, and I think it is clear enough that these other people in items 1-5 have said these things. I don't have to think of myself as being infallible to know they are relatively certain facts.
So lets not try to escape the issue with ad hominums or logical fallacies.