Still no answer. Just Bishop Williamson's opinion.
No doubt you believe that your opinion is worth SO MUCH MORE than Bishop Williamsons'.
Here's another quote from the video:
"Consider what Archbishop Lefebvre said in late 1979 in a conference to Econe seminarians:
"We must be prudent. It is obvious that if Pope Paul Vl was not pope, then the cardinals he appointed are not cardinals, so they cannot have elected John-Paul l, and they cannot have validly elected John-Paul ll, that much is clear."