moon1234;10220786:
While Rome has said that the SSPX remain Catholic, they are not in obedience to the Pope. I have asked several priests, some from religious orders and some secular priests, about attending a Tridentine Mass said by the SSPX. All of their responses were identical: Catholics may not
attend those Masses nor receive sacraments there until the SSPX regularizes its ties with Rome. And I think that Rome has made many strenuous efforts at attempting to reconcile with the group.
My understanding is that, at this time, the priests of the SSPX are validly ordained. Therefore, all their sacraments are valid, including the Eucharist. This may be what is meant by saying that they are still Catholic. However, they are sedevacantist and not in communion with Rome. To attend one of their masses would imply approval of and support for their positions, and therefore is unacceptable for a faithful Roman Catholic. Even if you don’t approve of their positions, attending exposes your faith to inimical influences and is wrong.
Pope Benedict XVI has done everything possible to effect a reconciliation with the SSPX. He has been extraordinarily patient and generous. Unfortunately, disobedience becomes a habit. Not only do they continue to find excuses not to reconcile, apparently they are now facing their own schism. They are reaping what they have sown.