Maybe FSSP should consider not being in communion with non-Catholics who hate them.
It's honestly astonishing to me that more people haven't recognized that Francis is not Catholic. He says something against the Catholic faith almost every week for 12 years now.
Eventually, they're gonna put somebody so bad and do stuff so crazy that every Catholic will not follow the Novus Ordo church. But sadly today we still have some Catholics excusing all the heresy.
But maybe it's like a frog in boiling water. Even good intention people will still remain when their pope calls for married lesbian priestesses who preach about children's fundamental rights to medically transition to a different sex.