False. I've heard no SV claim that Roncalli was illegitimate on account of excommunication for Fɾҽҽmαsσɳɾყ ... due to the fact that Pius XII lifted excommunications as impediments to papal election. In fact, the only one I've ever heard float that was ... Archbishop Lefebvre. When +Lefebvre mentioned that, that a pope-elected excommunicated due to Fɾҽҽmαsσɳɾყ would not be legitimately elected, that thought occurred to me at the time, which is why I remember this.
And, no, the Siri thesis does not give "wiggle room". It's a completely different consideration. And most SVs refer to Roncalli being a heretic for why he wasn't the true pope, not his excommunication due to Fɾҽҽmαsσɳɾყ.
I wasn't talking about Roncalli specifically but Pius IX. But even then my statement is not false even if I'm talking specifically about Roncalli as I've exchanged messages with others and seen others material (Dimonds and others) that use that as one reason for throwing Roncalli out but not the only reason, most of their beef is what he did with 'V2."
As far as Pius IX the reason I put "amongst other reasons" in quotes was to show that that wasn't the ONLY reason some sede's suspect him (or throw him out completely as a valid Pope) but I didn't want to get into all that here.
My main point was that if he (Pius IX) WAS a Freemason before his election then he would have been automatically excommunicated before his election and never would have had a valid Papacy.
Most of the Vacancy Pushers won't consider even the Vatican I Council as legitimate and throw out all Popes as Anti-Popes past that so Pius XII's decisions will mean nothing and if Pius XII was a Freemason then of course he would lift excommunications as impediments but if he was a Freemason he wouldn't have held the office at all.