Do you have figures that dispute the graph shown in the article referred to there? Because if that's correct then it certainly is racist to pick on Mexicans.
You're not thinking about this logically. Your logic has been occluded by your visceral hatred for Trump as a person.
Trump wasn't claiming that Mexicans commit a disproportionate amount of crime. He was claiming that a significant proportion of Mexican illegal immigrants are criminals.
But the MSM deliberately and maliciously misrepresented his statement as racist, and millions of twits were fooled.