You need to ask yourself why the company hired you in the first place. You might perceive yourself to be an equal, but as shitty as it is, most likely the company and your colleagues do not. They should, but they probably don't. The company looked overseas to hire you in the first place solely because you were cheap labor. If you were not willing to work for cheap, they would not have hired you at all, they would have hired a local instead or found someone else overseas who would work for much less. That's the unfortunate reality - it's not about you as an individual, it's not about what you do, it's about what you are to them - cheap labor.

Ask yourself, if the roles were reversed, why would you want to hire someone from the United States to work for your business wherever you are based? You'd probably prefer to hire locally. The only reason you'd start looking abroad is if there was some value in doing so, and that might be for cheap labor, or it might be that when selling product overseas you want a person local to that area selling to the people of that area because they might be more successful at selling than a foreigner.

Your other post said you were demoralized and “quiet quitting”, or collecting a paycheck and fucking around.

That may work for a while, but long term you will be unfulfilled and miserable. It’s time for a change

Definitely a time for change, but that doesn't invalidate my argument about equal pay

You’re downvoted but you’re right to point out that you’re considering your own best next steps but not letting your individual circumstance dictate what you advocate