The simple facts: The worldwide Anglican Communion has close to 70 million members (and growing). The Episcopal Church has only 2.3 million members (and shrinking). They comprise less than 4% of the total--but if you asked them, they think they are The Church.
This tiny faction of the Anglican Communion, the Episcopal Church, is no longer in the business of saving souls, BUT the Anglican community is a major force in worldwide mission and ministry. Dismantling the entire network-of-salvation because of an errant few would be, well, Satan's dream-come-true.