Why did the Mexicans believe that the Spaniards were immortal?

After the independence of Mexico and centuries of brutal colonial rule, animosity emerged against Spanish people in the new nation. From August 1827 to 1834, by a decree issued during the government of Lorenzo de Zavala, many Spaniards and their families were expelled from the State of Mexico and killed.

your answer is

to dominate europe

and i know for a fact it can't be the others

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.