What was Booth's motivation?
Mitch Leary (Booth) makes comments that indicate that he is an antinatalist. "Life is random, it has no meaning..." etc. When Frank asks him why he wants to kill the President he says "To punctuate the dreariness."
Antinatalists believe procreation is wrong. They believe is immoral to have children, to inflict life on a sentient being that has no say in the matter.
Leary was some sort of dark operative for the CIA. A "wetboy". An assassin. His work or his general inclination made him an atheist and possibly an antinatalist.
He seems apolitical and cynical. So why does he want to kill the POTUS?
A good film. I'm just curious about his motives.