A big part of this is the leftist fiction that Hispanics are not white.
Bingo, a winner!! Whether they are physically white is immaterial. Every one of these invaders speaks a European language. 90% of them follow Christianity. Every one of them comes from a land that was colonized by a European country.
Hispanics are white when it suits the narrative. On a crime website in New Mexico, people with hispanic surnames are listed as Caucasian if they are perps, but Hispanic if they’re victims.
That would tend to skew the numbers.