if 'independent bishops' can validly exist, then there is no need for an imperfect council or even a pope..
The sedevacantist logical premise is this: The juridical church Christ founded has been usurped.. And now 'others' calling themselves 'independent catholics' will have to re-establish the true church..to run in parallel to the usurped RCC in Rome..
Think about that..
Very Reverend Father Louis-Marie de Blignières has gone down this path only to awaken to the knowledge that sedevacantism simply doesnt work.. it is circular reasoning nonsense..