How can I “fix things” or “take some action” myself if I am not American? Care to explain?

Yes, no one can do anything unless sufficiently american. Are you reading what you are typing?

Simply not buying any american products would count as “taking some action”. “fixing things” could be as simple as making sure your government knows you support actions to solve american global aggression.

Neither did I?

These are the same people who go on and on about how the “vast majority” of americans are not supporting the actions of their government. They need to think like this, that someone else will fix things, otherwise they might have to take some action themselves.