Just enforce the present laws like sheriff Joe Arpaio’s doing. Then hire seniors and (people who actually like to work) unemployeds to cart these freeloaders off to the border in busses with positive ID’s on all of them to ensure that none comes back across the border. Have a Mariachi Band greet them with ‘South of the Border, down Mexico way’.
Works for me!
And it’s full of “shovel ready jobs”! ;^)