This estrangement from other Catholics and each other is born of the sectarian and cultic mentality which has arisen within Tradition and particularly in the SSPX/Resistance/Sede segments.
We have been so internally focused(with encouragement from the leaders), that we have lost sight of the Church as a whole, as well as our brethren whom we might bring out of the darkness of Conciliarism and unto salvation.
Should we be rigourists? Should we be rigid about Doctrine and Catholic comportment? Absolutely, yes, but our rigor should always come to the other in the cloak of concerned Charity. Concern for the Church, concern for the immortal souls around us, concerned for the scrutiny of God's eyes upon us. The truth should not be used as a bludgeon, rather it should be applied as a salve to the wounded souls that we encounter.
But we are too easily scandalized too many times, which becomes an unintended indulgence of pride after a time. I wonder what might be worse in God's sight, an uncovered head and legs, born of ignorance or a veil of prideful
condemnation upon our own?
Charity is bringing forth the truth of the Masters Gospel in kindness and patience. A refusal to shun and condemn, a rejection of these things for Christ's sake. While he waits upon His altar at Mass, does he look out upon Love for Him or malice for our brother?
If this account is accurate and Father Pfluger's Francis like blather is true, then ponder this, both he and Bishop Fellay and all of the other liberal minded clerics of the SSPX were educated and formed in the seminaries of the Society. Here is an end product. It is no accident. Setting aside individual character, there was something in the principles, attitudes, and philosophy in their training that inclined rather than excluded their minds to slide in this direction.
The seed was in them, it is in all of the priests that came from them whether they be resistance or sede, or Society proper.