Ecumenism and my experience with ecumenism utterly destroyed my hope in the world Orthodox Church. To see liturgies performed in tents directly after pagans amazed me (very negatively). The antimention placed on the "altar" not 60 seconds after a pagan idol was on it took my breath out of my lungs. To hear the Orthodox prayers sung not 30 seconds after the tribal dancing stopped, sunk my guts.
Was there ever an instance in Orthodoxy that the church ever participated in such things? Why would EO Christians accept such things (and bishops)?
From what I can tell of the canon of the Holy Apostles - never.