I can continue to minister in TEC and the Anglican Communion for two overriding reasons. First, TEC and the Anglican Communion are still explicitly catholic, even if many of the bishops/clergy are (in varying degrees) preaching/teaching inconsistently with the Church's credo. Second, I don't believe in the doctrine of "the total depravity of TEC" (sorry folks). In my experience, though things may be bad, even really bad at times, I have not written off every person, every bishop, every priest or deacon that holds (to some degree) "revisionist positions."
If one were to listen indiscriminately to the rhetoric of the GAFCON conservatives, one would conclude that every person, every bishop, every priest and deacon that is in any way identified with "revisionism" is totally void of a living faith. I know this to be an unfair generalization.
In essence, I don't believe that the simple "two gospels" dichotomy is an accurate working description of the way things really are in TEC or the Anglican Communion. Truth be told, people are all over the map. Only the most tenacious folks on the extreme wings are living into the reality of "two gospels" and believe it to be their divine calling to impose one or the other "gospel" on everyone else. That's why the only thing that really matters at the end of the day is the Church's credo, not our individual "credos," and endeavoring to live into it.