The Russian and Greek Orthodox churches are all that’s really left of Christianity and the Byzantines in particular. The rest is a joke.
The Eastern Orthodox churches are ethnic entities that don't take anything seriously. Why else would they participate in the ultra-left wing ecumenical movement?
Eastern Orthodox (and other ethnic) chrstians refuse to participate in the culture war in the United States. They pal around with depraved atheist liberal politicians. And they hate the rural Fundamentalist American people as much as any scientific atheist.