Many Hispanics didn't immigrate to the US. Their ancestors were already there when the US conquered California, New Mexico, Arizona, Nevada, Utah and Colorado from Mexico.

For generations Hispanics were migrating to the states you mentioned. They colonized first. See Pobladores https://en.m.wikipedia.org/wiki/Los_Angeles_Pobladores

Another group of people came along and decided that was enough of that. The land belongs to them now and put up a border after what Ulysses S. Grant called "the most unjust war" ever waged. Please correct me here if I'm wrong.

And from the article, over 60% is of Mexican ancestry. So over 30 million versus the population of Mexico at a little over 120 million. Roughly 20% of Mexicans moved to the US.

Using the modern populations of these countries is disingenuous, you need to consider recent historical immigration rates (legal and illegal). This is like saying there are 42 million Black Americans and most Black people have West African roots, so Roughly 20% of Nigeria has moved to the US. As posted below, historically Mexicans have been in the US forever, and the US annexed large parts of Mexico relatively early in its history.

> historically Mexicans have been in the US forever

As recently as 1940, Hispanics made up only 1.5% of the US. Population. As of 2010, they made up 16.3% of the U.S. population (about 50 million people). As a point of reference, Canada has a population of about 37 million people and the UK has a population of 63 million people. So we have imported roughly an entire Canada/UK's worth of people from Latin America. As far as I am aware, immigration of this scale is basically unprecedented in human history.

https://en.wikipedia.org/wiki/Historical_racial_and_ethnic_d...

Wait until you hear about how much the population of white people increased in the 17th century.

I guess what I meant to say is: population movements of this scale occurring without violence and genocide.

Or, as is the case with my family, the US moved to the Mexicans.