It was prophesied that Satan would eventually overthrow the seat of Rome and that the Church would fall. It was also prophesied that the Church would be resurrected during the beginning period of the End Times.My reasoning is that Pope John Paul II, with a heavy heart, excommunicated Archbishop Lefebre, . His reasoning is more correct then yours or mine. Reunification with the SSPX is a difficult struggle for the Church, but it seems to me the SSPX are not cooperative.
I have written extensively on Fr. Gruner in Catholic Answers Forum, but that was 10 years ago. He has been excommunicated. He is an apostate. He operates his printing company without dicastery and pumps out literature by the trainload. He thinks he knows more about Fatima than Sr. Lucia. Interviews with Sr. Lucia about Fr. Gruner are available on line. I know where he lives, I grew up on the same street. His "apostolate" is a deception, because he pretends to be Catholic but in fact, is in rebellion.
I believe we are on the cusp of the 5th and 6th age with the 6th age being the End Times which lasts just under 500 years.