How were oppressed people in other countries affected by the American Revolution?

Not at all. Since back then America was not a power like it is today.

Korea was definitely influenced by the American Revolution. They copied the Declaration of Independence from America and modified it. I believe the French were also influenced by the American...

Generally, The American Revolution demonstrated the possibility of overthrowing "old regimes"; it was, without doubt, an inspiration to French critics of the "Ancien Regime", & had some influence...

Notably, France (1789-1799). But South American countries were also impelled to seek their independence from Spain.

France