OS of manipulation (Zemo manipulates everyone into self-destructing: “An empire toppled by its enemies can rise again. But one which crumbles from within? That’s dead… forever.”)
For an Overall Story Throughline to be in Psychology, the actual process of HOW people think needs to be shown to be problematic.
Instead of Psychology—or Manipulation, which is less accurate and leads to all kinds of misattribution as you can see, it can be easier to think of the Concerns underneath the Domain. In other words what is problematic about developing a plan, playing a role, changing one’s nature, and conceiving an idea, that everyone contends with throughout the entire story?
One man manipulating is not an Overall Story Throughline of Manipulation. It might be a Main Character Throughline of Manipulation or it might be an Influence Character Throughline of Manipulation, but for an Overall Story Throughline to be concerned with Manipulations that would mean everyone in the story is going through some kind of psychological dysfunction.
This doesn’t sound like Captain America: Civil War to me.
MC of situation (Steve is a man ripped from his own time, forced to live in an era where nothing is familiar and everything integral to his life and experience is at odds with everything else around him. His friends are all dead except for Peggy who they make a big deal of killing off in this movie, and Bucky. Take Steve out of 2016 and put him back in his own time – or even back in the ice – and he’d be unstuck.)
This would mean that Captain America: Civil War is all about Steve Rogers trying to get back in time.
Like Marty in Back to the Future.
As a Do-er, this would mean Steve specifically tries to resolve this personal problem by taking external action. What does Steve do to try and get back in time?