Cynical interests -- including political and business -- have worked to frustrate the will of most Americans that our laws be enforced and our borders be secured. Those interests have virtually ~welcomed~ a flood of illegals, with their attendant social costs such as a high rate of impaired and unsafe driving without insurance.
You are correct that innocent Hispanic people suffer from the rage of Americans at this state of affairs. A furious public does not typically respond in a very nuanced way.
My suggestion would be that you direct some of your concern at the politicians responsible for the flood of illegals rather than people who are p.o.'d about it all and don't necessarily wait for the justice system or detailed media accounts before reacting. (The media and the justice system, of course, will not pursue the truth so we'd be waiting until hell froze over.)
I don't care how frustrated we are with illegal immigration.
We do not have the right to go after an entire race of people because of it or make excuses for such behavior.