[irishjuggler]

Nobody, but neither will the post hoc ergo propter hoc fallacy find much traction there.

Is it a fallacy in this case? If Vatican II (or, rather, the infamous "Spirit of Vatican II") did not provide the wrecking ball with which the liberals have used to decimate the Church from within, why are they constantly invoking, defending and seeking to preserve it?

[aposiopetic]

Vatican II (or, rather, the infamous "Spirit of Vatican II")

You've put your finger on it. They're not the same.