> declared SSPX priests to be schismatic, and therefore excommunicated, and invalidated the sacraments of confession and marriage that they administer.

This is the big part no one's talking about. After the first Econe consecrations only the bishops were excommunicated, not all the clergy too. Before the recent consecrations, a lot of people (myself included) recognized the consecrations as wrong but were fine attending SSPX Masses because those priests were never excommunicated. Many traditional Catholics saw the schismatic bishops as the problematic leadership/history of an otherwise well-intentioned organization. But now, given all of the SSPX is excommunicated, attending SSPX Masses are clearly wrong. This is all a very sad situation. Please keep both the SSPX and the Pope, as well as all the faithful caught in the crossfire, in your prayers.