Traditionalist Catholics do not ascribe the Pope or Vatican II any power,in fact they openly reject them.Traditionalists are viewed as schismatic by Rome,and Rome is viewed as false Catholicism by Traditionalists.
So everyone equating Mel Gibson with papist Catholics is way off the mark.
The notion that there is ANY traditional Catholicism that rejects papal authority is a persistent non-truth spread here for self-serving reasons (or because they have convinced themselves) by about 10 schismatic dissenters who imagine themselves more Catholic than the pope and have delusions of grandeur that the schismatic SSPX and its excommunicated bishops and founder are the Church.