The decline began in the 50s with Pike and Spong abandoning basic Christian doctrine without suffering any consequences, and accelerated through the abandonment of the Book of Common Prayer and the male priesthood.
Vicki Gene was simply the Last Straw for many people (including our family) . . . other people's Last Straws came sooner . . . and I guess the selection of another homosexual bishop out in California will be the Last Straw for a few more . . . and so it goes.
There is a joke current among those of us who fled from the collapse of Anglicanism years ago:
As a idol of the Buddha is carried down the nave of the cathedral, an
old Anglo-Catholic hold-out turns to his wife and say, "So help me,
one more thing like this, and I'm out of here."