[Dominick]

This official act of Rome recognizes the right of the Society of Saint Pius X to incardinate its members.

That grant was in force, until the SSPX left the Church. When Lefebvre was excommunicated, that point was made moot, since there are no valid SSPX Bishops. The Bishops he installed were also excommunicated, so even if they are validly installed, they lost the Episcopal rights they may have enjoyed. A Priest can't be incardinated without a Bishop. The SSPX doesn't exist in the Church, and as such doesn't enjoy those privileges.

The lack of Incardination was made clear by Ratzinger on at least two occasions I have in writing. If the SSPX retained that act as having force now, then Ratzinger would not mention that as a specific problem.

[Land of the Irish]

That grant was in force, until the SSPX left the Church.

The SSPX never left the Catholic Church; it's the majority of Rome that has "wandered off the reservation".

[ultima ratio]

Since the SSPX never left the Church, its rights are still in force. As for the validity of SSPX bishops--even Rome admits they are valid. You really need to get a grip. Your hate is making you talk tripe.