Sedevacantists are not in Communion with the Catholic Church. Sedevacantists are still in a state of heresy/schism until they accept the teachings and authority of the Church and reconcile with the Church.
Who is considered a sedevacantists?
People who believe that there has been no pope for the last 60+ years.
I would think such people aren’t sedevacantists (they don’t really think the see is empty), but followers of an antipope.
But are these ppl affiliated to a Church, are they Protestants or Catholics?
They are a group that split off from the Catholic Church. I personally would consider them Protestant.
They consider themselves Catholic, and us not Catholic. But there are a bunch of different groups of them. Look up “Pope Michael” for kicks. He did not step down today.
If they are sedevacantists, they actually care about the Chair of St. Peter, so they obviously consider themselves Catholic. E.g. Presbyterians are not sedevacantists.
I cant speak for the OP, but I can see the same question applying (and the same answers applying).
I didnt realise until reading some of the links on this thread just how deep this division was. is it fair to say that, whereas the SSPX are in irregular standing and can be regularised if they will submit to certain conditions, the SSPV and other Sedevacantists groups deny so much of the Church’s authority that it would be impossible for there to be an institutional reconciliation, only individuals repenting and returning to the Church?
Yes, and they believe that we are about to elect another anti-pope. I just don’t get it. Following that thinking I guess there will never be a real one? Is the end of the world around the corner? And no one told me!?
I don’t know if I would say impossible, but certainly very difficult. Even more difficult than what is going on with the SSPX and that has been difficult enough.