reposting a comment:

well, there's not much to "theorize" on here, Vigano is "guilty" of schism by the letter of the law

which is why we think Vigano is probably working for the modernists / leftists / other side, because his positions promote confusion

He seems to publicly accept Francis as "pope" and yet does not obey him as pope, leading to a false common traditionalist position of "recognize and resist" which has been criticized for a long time

If he thinks Francis to be pope, he must abandon his "rebellion" and obey him

Of course, since Francis seems to be anti-Catholic and promotes anti-Catholic agendas, this instead suggests to us that Francis cannot be a Catholic pope

Thus Vigano should take the position that Francis is not a Catholic nor a pope, which is more logically consistent

Instead, he publicly promoted Francis as pope, and then rebelled against him... which is the definition of schism, and which makes traditionalists look "bad and schismatic", which plays into the modernists' hands

see also: sedevacantism