To find work, or to commit some more sexual assaults?
Since that's the excuse you hear so often, I say give it to them after ctaching them. Hard labor on the wall with cost of food & shelter taken out of their pay. After time served, back across border & if caught again on this side, 10 years minimum. The word would get out on the other side of the border that it's not a picnic here anymore. Now the message is "come on up, the pickings are easy"