There are patterns and certain characteristics, but no clear boundaries on where one race ends and one begins. 62% isn't "overwhelmingly", and the fact that those two are the best examples you can find isn't promising. If Guatamela is overwhelmingly indigenous then Illinois is overwhelmingly Republican.
Mexico is about 40% white Hispanic by the latest data I could find.
There are patterns and certain characteristics, but no clear boundaries on where one race ends and one begins. 62% isn't "overwhelmingly", and the fact that those two are the best examples you can find isn't promising. If Guatamela is overwhelmingly indigenous then Illinois is overwhelmingly Republican. Mexico is about 40% white Hispanic by the latest data I could find.