John Bacon, writing for Anglican Pastor:

In our current climate, it would be very Anglican to return to the feet of the early, divided Church, and ask how we could more fully participate in the life of the Triune God in Holy Communion and in sanctified community.

It would also do us well to remember that Christendom and the Church are related, but not the same thing. The death of Christendom does not spell the death of the Church. Pentecost took place in a pagan empire, around three hundred years prior to the conversion of Constantine.