.
This same old argument comes up again because petwerp is a worm and a troll 
.
So Neil, like I said in my first response to you, all you have are insults and name-calling. That tells me all I need to know. You're simply not interest in the true.
I've addressed the prudence/principle fallacy.
The second falacious argument (viz. that archbishop, upon reflection, concluded the protocol contained something unacceptable) has also been disproved. 
I've provided enough quotes, including one from the archbishop hiimself "I signed the protocol on 5th May a little reluctantly, it must be said, but still ... in itself, is acceptable, otherwise I would not have even signed, of course". And I can add this one from Bishop Tissier de Mallerais (October 1988) "Archbishop Lefebvre had judged [the protocol] on May 5 as being at the extreme limit of acceptability".
What was unacceptable to the archbishop was 
what was missing from the docuмent: a date for the consecration. It is clear to anyone reading the May 6 letter that it was not a retraction. How could you rely on something you retracted ("I would find myself in conscience obliged to proceed with the consecrations, relying upon the agreement given by the Holy See in the Protocol for the consecration of one bishop member of the Society")?