“Then it is time for them to come over into the fulness of the church, and to cross the rubicon.”
You appear to be claiming that the SSPX are NOT fully Catholic. Why?
I know former SSPX who, when they came to understand what was really going on, left the SSPX, and are now Catholic.
They did so before this whole move over. They were treated very poorly by their ‘friends’, when they were received. She and her husband are rather amused by the proceedings now, given everything that they went through before.
If they are Catholic, in obedience to the Pope, then they should accept this decision and continue to show that they are no longer schismatics. This is like a maiden wavering on the altar, arguing over floral arrangements.