This is correct, though I don't buy for a second that whites and hispanics commit violent crimes at approximately the same rate. While violent crime committed by Mexicans isn't as high as black violent crime in most areas, it is still far higher than what you see among white anglos. A quick look at the demographics of maximum security prisons shows a lot more black or brown faces relative to their numbers in the general population.
However, I read through 4 published academic crime studies on Google, and there are statistics that support the general idea that Hispanic and white crime rates are about the same.
The big question, though, is how accurate and how rigorous are those studies?
Intuitively, and based just on Hispanic gang activity by itself, my instincts say “BULL!”