Bravo!
It has not been done, because it cannot be done. Rome hasn't done it, let alone all the mini-popes on this forum who excommunicate complete strangers at the drop of a hat.
If anyone, anyone wants a good clear rationale for the SSPX come to the Archdiocese of Brisbane and meet the nuns who practice Wicca and the Archbishop who wants describe himself as a "shaman of the Dreamtime." A little time in Brisbane and you realize that your allies are in places you never imagined and, yes, the world has gone mad.
But I can't accept the SSPX attacks on the Holy Father here on FR so I get it going and coming. But I have more than enough to keep me going -- I have the Most Blessed Sacrament, the Holy Ghost, and I've got Our Lady of Knock, Queen of Our Ireland, and I have St. Brigid and St. Padraig. And so much more.........