You can't excommunicate anybody twice unless they are "accepted" back into the Church in the interim.
That's no different than trying to execute a corpse.
You're getting desperate.
You continue to ignore the so-called excommunication of Bishop de Castro Mayer.
Source? If not, I'll take the opinion of an expert canonist like Cardinal Lara over yours. The Code nowhere says that someone cannot be penalized with multiple excommunications.
Seems like the schismatics are getting desperate when they appeal to the authority of Lara to "prove" that the SSPX isn't in schism - when his statement actually says that Lefebvre's consecrations were schismatic!
You continue to ignore the so-called excommunication of Bishop de Castro Mayer.
I'm not ignoring anything. He was excommunicated too.