The bible can be used for both, but understandably most use it the way you mention. Most people are not highly analytical.

Let me be more clear on the transition. Daniel has a lot to do with the sequence of empires. Their rise and fall.
Babylon, the greatest city of its time, fell not to conquest but from a simple removal of its co-regent "king".
This methodology is based on a combination of two sequences of ancient events. Similar to the Persian overthrow but not exactly the same. Only if there is an assassination, most likely in this term will the method be valid and then America, as we have know it, for over 200 years will be radically altered, the constitutional republic will collapse.