A big Amen to your entire post. I share your sentiments.
I personally believe that the Psalm 83 war will kick off, followed by WW III (the Ezekiel war). Where will America be? I am not sure. Not every war is listed in the Bible (WWI, WWII, Korea, etc). Only those wars that God has given us insight to, and all revealed prophecy seems usually involve Israel).
I believe America will fall as you do. We may still yet have a great role to play, as God assigns us. But a large segment of the American people are now stiff necked, lazy, and godless. Judgment is perhaps already upon us.
We are in total agreement. I also believe the Psalms 83 war comes first, then Gog-Magog.