Just like the magisterium.....
They think they're experts. That must make them apostates.
Again, your beef is with the Western Church. On the Eastern side, we have no such group. Our Doctrine and dogma was established by the Seven Holy Ecumenical Councils.
I might be mistaken, but other than the Church councils, and the Pope speaking ex cathedra, the Roman side doesn’t claim perfection either.
It is amazing what hatred is manifested by those who claim they were once “Catholic”