And they also believe that they are descended from Spaniards instead of Native Americans.
You’re really close to the dirty little secret about Mexican society. Mexicans judge people by the color of their complexion. Their novelas and movies are full of it.
That ties in with what I was told in Venezuela when I was down there in the '80s. One of the locals I worked with said there was a hierarchy in Spanish-speaking countries. The criteria was how much Castillian was used. Ecuador was at the top of the list, Venezuela in the middle, and Mexico at the bottom (the "dirtiest") because it contained so many Indian words.