According to a recent Pew Hispanic Poll, 31% of Hispanics think illegal immigration has had a negative impact on the US:
Hispanics are also divided about the impact of illegal immigration on Hispanics already living in the U.S. Roughly equal shares say the impact has been positive (29%), negative (31%) or made no difference (30%). This mixed judgment stands in sharp contrast to views that Latinos expressed on this subject in 2007. Back then, fully half (50%) of Latinos said the impact was positive, while just 20% said it was negative.
Of course, the Left would call those 31% of Hispanics racists.