Do you yourself have any of this "Petrine authority" which you incessantly yammer on about?
That is a simple yes or no question, pertaining to yourself as an individual human being -- not the ecclesiastial association to which you possibly self-identify as being associated with.
Can you answer the question honestly and simply --- as that question be to yourself, alone, doing so without dragging in yet more extraneous argument?
Yes, I believe in the Credo. So what do you believe in?