If there is any difference between the SSPX and Resistance, I'd say it is summed up in that pdf; that the SSPX still recognizes the Church authorities at the Vatican in act, while the Resistance hardly recognizes them in word only.
So, the SSPX can say; "we tried asking for bishops, out of respect for Church authority", while the Resistance can say; "we do what we want without any regard for the current authorities of the Church, while further disrespecting them by calling the [supposed] Pope by his birth name."
Feel free to correct my over simplification, but don't be blinded by the pride you have in your side of the matter. Dialogue and attempting to respect authority are two different things, and it appears to me that the SSPX gets the latter right, while the Resistance doesn't.
No, not at all. It is the Resistance, in line with Archbishop Lefebvre's position after the consecrations, that gets it right.
The villains in Rome, to use the wonderful vocabulary of Bishop Williamson, so systematically abuse their authority and undermine the truth that it is dangerous to go anywhere near them. We can see how close the great Archbishop himself came to shipwreck in 1988. Which is why he said afterwards "if anything, I went too far", that "our truest friends warned me against going to Rome, warned me that it was dangerous" or words very close to that. New Rome has made it abundantly clear for many decades that they want to destroy Tradition and that they cannot be trusted. We must completely separate from them if we want to keep the Faith, that was the Archbishop's final counsel.
"We do what we want without any regard for the current authorities of the Church, while further disrespecting them by calling the [supposed] Pope by his birth name" - this is not at all the position of the Resistance, but the position of the sedevacantists.