Well as usual, he is either ignorant or hoping the American news reporters and a majority of the American public is ignorant.
While the SPANISH made colonies in North and South America prior to 1776 and while SPANISH military, SPANISH colonial administrators, and SPANISH Catholic missionaries were operating in parts of North America by 1776,
(1) the REAL Mexicans, the natives of Mexico WERE NOT a dominant part of those efforts (they were the peasants controlled by the Spanish colonialists who were no different than the other Europeans in North and South America) and
(2) the U.S. was a nation BEFORE “Mexico” was an independent nation and not a colony of Spain.
The ignorance of modern Americans - created by the American schools - allows “the Hispanic” activists to present the myth that modern day “Mexicans”, a society driven predominately from the descendants of its European Spanish colonial immigrants and, with SOME of those immigrants the natives they married, presents them collectively, with the same status as people like the Aztecs (nearly decimated) or many of the North American native tribes as “native” here, compared to the society of the United States.
Its a myth; their “nation” and their society is NO LESS a product of European colonialism than the rest of North America.
It’s a convenient myth, pushed by Hispanic activists and various Left wing and “open borders” types, in ignorance by many of them and as never-to-admit lies by those that know better.
I think he's on firm ground with that hope, unfortunately.