Since I took a deep breath and started wading into the website world of those supremely evil men who value being of European stock and somehow connect the White race with Western civilization,
two things struck me.
The first is the split between the pagans/Nietzscheans and the Christians. God, do they hate Christianity. Problematically, although contemporary Christianity is pretty well captive to the multicultural trance, I would bet that a huge chunk of potential post-Americans would be angry conservative White Christians. In Harold Covington's NorthWest novels, the major internal threat to the establishment of the post-American White nation is religious hatred: Christians vs pagans. He finds it humorous that the mediating group and voice of sanity in these fights are the non-religious National Socialists...
The second is the spectrum of emotions that accompany assessments of the passing away of America. Many, like me, are sad. Some of these guys have decided that it was a rotten idea from the get-go and its current demise is only its logical and inevitable working-out. They cheer to see it die. That, of course, I cannot do.