Question regarding sedevacantism

If sedevacantism is true,  how would our loving God have permitted so many  of us  to be deceived and for so long? Answer from a friend: Like most things that are part of His plan, we don’t know or understand but we can be certain that it is permitted only in order  to bring about a greater good than if he hadn’t permitted it. I think of Joseph’s being sold into slav…