Boarders without borders

It seems everyone has a relative who needs to crash at your place once in a while. The trouble is they have no desire to leave. In the interim they will be eating your food, using your phone and treating your home like a shanty town. These people are boarders except they have no intention of paying you. The fact is any time people see an opportunity to better themselves, even at the expense of others they will. So is it no surprise we can't secure our borders. If we continually support undocumented immigrants with social programs why shouldn't they come. We would do the same also. The only border that works is one where there is no possible advantage on the other side, or certain death awaits. America will soon be a third world country so maybe we should be nice to the Mexicans, one day we may be boarding South of the border ourselves.