Because most of the legal Hispanic immigrants know of a few of their own relatives who are here illegally. They want all the others deported but not their own.
I don’t think that it is feasible to ask that ALL illegals be deported, but I do think that the recent illegals should all be deported.
What I would like to see is voter ID that is not connected to motor voter. Special drivers’ licenses for people who lack proper identification (birth certificate), that would be accompanied by a prepaid insurance policy. The special driver’s license would be accompanied by a full set of fingerprints so that the person without proper ID could not simply change his name whenever he got into trouble.
The driver’s license with fingerprints would also help prevent id theft.