Just putting it out there, and I am going to flub up something, so bear with me.
On one side are those who believe that God allowed this Crisis and we deserve the Pope's we get, so we stay true to pre V2 and continue out of habit the way we are supposed to practice our faith (most R&R). The people who disagree, feel that the Church can not lead the faithful this far into error (sedevacantism)
Both are trying to protect the indefectibility of the Church, R&R focuses on the Apostolic hierarchy, and sedevacantism focuses on never becoming corrupt in faith or morals.
We as humans are confused. We are trying our best, and we need clergy debating (and maybe some intellectual laity, who don't get emotionally attached to their position) discussing these matters, but it should never have turned into using the laity against each other, it shouldn't have broken families up, but this is where we are and we need to show kindness to each other. I will keep saying this until God allows the problem to be fixed. We must remember that we have control over ourselves, the devil can't make you do anything and God won't make you do anything. How we handle ourselves is how God is going to judge us all.