There is an empire falling, and they want you to believe that empire is the United States. The truth is obviously that these people have zero loyalty to any nation and operate internationally.
However they run the media, and they have spent years telling you that saying the US is a collapsing empire is cool and trendy and it's what smart worldly pragmatic people say. They're desperate to make this a reality and drag the United States down with their system.

Interesting question.

What is the difference between the fall of an empire and the draining of the swamp when the swamp are part of the cabal?

I think the cabal can be seen as a type of empire.