I think you make one error in your analysis and that revolves around "American Corporations".
The term "American Corporations" connotes some underlying connection and loyalty between the concept of America as a nation and corporate behavior. I believe this misses the change from corporation as a local entity tied to a community, and corporation as a flexible-international entity existing beyond the realm of nationhood.
Nation States are a barrier and obstacle to the modern corporation. The threat to Nationhood, to the very concept of Nation, is simply Corporate Culture. The "New World Order" is not coming from the UN, but acts such as NAFTA and CAFTA. IMHO this is a serious threat to the continued existence of Nation States, including the US.
It is also a serious threat to National Security.
Aslan is not a Tame Lion