Initially, but it would build momentum over time. You'd have the sedevacantists of course joining him, and the possibly bringing in the Resistance, and perhaps large portions of those who currently got to SSPX Masses but are really sedevacantists at heart. Then, as their numbers grew, more would eventually join the movement. Bergoglio is so bad that it would just take one person to point out that the emperor has no clothes.
Resistance is already in practice and belief Privationist so I could see them staying put (what meaningful would change about their position?) but the remaining uncontrolled elements in the SSPX (I think in particular laity with sede options nearby are particularly going to be redpilled, priests few but some) will consider jumping ship as well as Independent chapels like OLHC could easily turn sedesomething.
If anything I think it's easier to redpill NO "priests" rather than Indulter priests. All you have to do is look at priests that went sede in the CMRI, Joseph Pham in particular stands out to me as someone who simply followed things to their logical and uncomfortable conclusions. It did not take him long after realizing there was a Latin Mass to realize that he had the Faith stolen from him. I don't think Indult priests are in a position to make this kind of realization because of their position in the Crisis, the FSSP, Canons (they lost their building and everything so who knows what their position is now but I'm guessing they will cow to Rome) and ICKSP are all organizations born out of extreme obedience rather than any theological coherence. These Indult organizations self-select for priests not able to make key conclusions in this situation.