Those are some great thoughts, Mave. This scripture goes so deep.
I think those verses about the aliens and feeding on the wealth of the nations is probably talking about how Israel will have victory over the nations which were oppressing them like Babylon and Assyria. At least it would make sense in the historical context. Even so, it applies to us as well when God gives us victory on every side and delivers us from oppression... but more appropriately it applies to those who live in countries that are oppressive to Christianity.
It'll definately be a time of peace, love and justice.