I have a friend who does NOT want to teach in the US.
And no matter what motivation I try to do, it doesn't push her.
Why?
I can only think of two things:
First, she's happy and has accepted her life as it is.
Second, she sees no reason to teach in the US.
Will teaching in the US ever happen to her? Probably not.
Will her decision change over time? Probably yes, with deep-seated reason.
Motivation is mental. Your enthusiasm will run out quickly once you get on the challenge and discover the realities of teaching in the US.
Even if you were easily offered a job, it would be a different story when you are already in the US - teaching.
Yes, earning dollars is an excellent motivation, but you will sometimes need more than that.
And that's the reality.