Here is an article from the Washington Post written by the rector of a large parish in Virginia and one of its members, who is a well-known Christian author. It gives the reasons why they and their congregation are leaving the Episcopal Church USA and summarizes the present crisis (and accompanying apostasy) in the Episcopal Church.
God forbid that the Lutheran Church-Missouri Synod ever reaches this state. We have some serious problems, that's for sure. We are a divided church body in many ways, and a few pastors, members, and congregations have found reasons to leave in the wake of some recent events and decisions at the last synodical convention. But thanks be to God that it hasn't reached the point where there is wholesale denial of such central articles of orthodox Christian faith as the Trinity and the Incarnation and Resurrection of Christ, such as in many liberal denominations today. As Luther declared in his explanation to the First Petition of the Lord's Prayer, "anyone who teaches or lives contrary to God's Word profanes the name of God among us. Protect us from this, heavenly Father!"
Why stay? Click here for one LCMS pastors' opinion, one with whom I agree.