The solution to the illegal immigration problem is not as simple as just building more walls. A physical barrier at the border can reduce the numbers, but will never stop all illegal aliens. Being an engineer, I tend to analyze problems logically. I developed a simple three term algebraic equation for the solution:
NO JOBS + NO BENEFITS = NO ILLEGALS
A corollary to this equation says: NO DEPORTATION NEEDED. They got here on their own. They will return home on their own.
When there is no attraction for foreigners to come to the USA illegally, they will either chose to stay where they are, or they will apply to come here through a legal path, obeying our laws.
The first term requires the cooperation of government and private employers. Our federal government established the E-Verify program in 1996 whereby employers can verify if an applicant is eligible to work. Federal employees and employees working for companies with federal contracts are currently required to pass an E-Verify check. Several states also require employees to pass an E-Verify check.
The majority of illegals coming into our country are seeking jobs. Congress would have to pass legislation requiring every employer in the United States to confirm that an applicant is eligible to work, with penalties on the employers for noncompliance.
The second term will require local, state, and federal legislation to limit benefits to only our citizens and legal immigrants. This will be a gigantic task, but it will have the positive effect of expanded benefits for those who are legal.
Finally, a challenge to the current interpretation of the 14th Amendment must be resolved by the Supreme Court. This amendment should not grant citizenship to anyone who is not a child of a U.S. citizen or legal immigrant. IT IS TIME FOR BIRTH TOURISM TO END!