CathInfo.com

As stated, calling them fake priests is hyperbole, but it's necessary hyperbole ... since beating around the bush will exert no pressure whatsoever on the neo-SSPX, just like the mealy-mouthed "dubia", aka "uncertainties", "hesitations", or "doubts" did absolutely nothing, and minimized the open and abject heresy in Bergoglio's teaching.

We can add the mental reservation to Fake of, "(for all practical intents and purposes other than in danger of death when you have no other options) Fake", so feel free to insert that mentally.

We can no more prove that these priests are invalid than that SSPX can prove that they are beyond any reasonable postiive doubt ... and yet the burden of proof is on them, a burden they simply cannot meet, lacking the requisite authority to do so, and yet despite that they insist that they're undboubtedly valid and then impose them on the consciences of the faithful, possibly subjecting them to invalid Sacraments.  Those on the contrary side of the issue need only to establish positive doubt, and the positive doubt is absolutely clear -- therefore (for all intents and purposes) fake priests.

Here's another way to look at it.

Even IF I were to follow the argument and personally conclude that the New Orders are valid, I would nevertheless refuse to impose that judgement of mine on the consciences of others.  I would realize that many sincere, intelligent (and intellectual), well educated, and orthodox Catholics, including not a few bishops and priests have concluded that there remains a positive doubt, and therefore that OBJECTIVELY the status quaestionis would have the Orders laboring under positive

Bishop Williamson actually held this view.  He personally stated that he felt the Rites were valid, but when asked about why he performed conditional Ordinations, he made a very similar statement, that others might legitimately come to a different conclusions, and that for the peace of their consciences (i.e. so as not to impose his own conscience on those of others), he performed conditional ordinations.

So, it takes a certain amount of hubris to impose your own opinion on the consciences of others ... in both directions.  SSPV on the contrary effectively excommunicate those who assist at Masses of +Thuc line bishops.  NOBODY OUT HERE has the authority to make such impositions ... unless of course you believe that the Conciliar Popes are undoubtedly legitimate.  That's actually the one argument the SSPX COULD in fact use, but that would entail appealing to the disciplinary infallibility of the Church, something they've battled against for decades now, and it would undermine many of their other positions, so they're caught in a Catch-22, but then of course there are many prudent, learned, well educated Catholic faithful, bishops and priests who likewise doubt the legitimacy of the V2 papal claimants.

Without the authority of the Holy See, it's just the SSPX posturing again as if they can exact an obedience greater than that which would be owed to the Vicar of Christ, that we must submit to their positions on all matters and those who do not do so are pround, disobedient, yada yada yada ... the same things that the Conciliars have long used to attack Traditional Catholics in general.  I'm not sure how they take make those assertions with a straight face.

Current Trad clergy can simply opine, make an informed, educated statement of opinion.  It's legitimate for a priest to conclude, "I think the +Thuc line bishops are doubtful".  Fair enough.  Nobody can condemn his opinion either.  But then if someone disagrees, he has absolutely no authority to impose his own opinion on them either.

If I were a priest hearing confessions, I would opine against NFP, explaining why I feel that Pius XII got that one wrong ... but I would not impose that upon the faithful, i.e. by denying them absolution if they disagreed and considered the practice to be licit.

That's the difference between opining (which they're free to do as anyone else) and imposing their opinion.

SSPX are doing the latter, and of course they're not alone among Traditional clergy, SSPV being the worst on the other side.