I agree, fix the legal loopholes and much of the problem will go away.
How about making illegal entry automatically illegal?
Nah. An idea like this is way too genius for an American politician. They'd never figure it out.
http://www.nps.gov/malu/documents/amend14.htm
What substantive or due process right do you argue is being wrongfully denied to our uninvited visitors ("any person") by just tossing their Mexican a**** back where they came from?