LEGAL immigrant hispanics that earned their citizenship and America born hispanics DO NOT want illegal immigrant hispanics permitted entry into the United States.
It affects them negatively but not for the reason you state.
It upsets them to see those that entered illegally are given freebies and hand-outs while they were required to work, provide for themselves, and prove that they were an asset to society.
When people flee a bad situation and then those that created the bad situation are allowed to bring that nonsense to their new country, THAT negatively affects them, and you, and everybody you know, and everybody else.