but
to expect a visible, bodily coming of Jesus, a resurrection of the dead, a final judgment, and a cataclysmic destruction of the present creation in the future
Isn't this basic Christianity?
So, to expect that the prophecies that God gave us for the return of Christ, including a visible, bodily coming of Jesus, a resurrection of the dead, a final judgment, and a cataclysmic destruction of the present creation in the future, not in 70AD, is, yes, "basic Christianity".