all the dialogue of the movie is not what it appears. It is often directed to you. It the internet convo between micheal and karen at the end is directed from Q and YOU Now. Watch the scene where the two security guys snicker and rip a printout and say something like "they are still figuring it out" That is us….now the Qanons. This whole event was planned for decades.
Nothing in the movie is random. Nothing. Its allegory. Characters are archetypes. God, Archeangle Micheal. Gia/sophia. Trinity stuff. Heavy deep stuff.
The song is not really a song but a speech given at a brainstorm session. I think one of the original ones. That came up with a plan….of how to escape our rulers.