Regardless, if I have to struggle to make sure my family has enough food and just a few miles away there is plenty of food and work, I'm hopping the fence. So it's illegal. Who cares? Send me back and I'll hop the fence again.
It would be hypocritical of me to find fault because A) I would do it, and B) As a libertarian I don't believe a crime was committed merely by walking a few feet. Just because someone commits a "crime" does not mean I personally take issue with it.