A very concise answer is there; you are just not competent enough to understand it yet, grasshopper.
ROFL... if anyone's gonna be armed with helicopters it will be the illegals not our people. We would never shoot our illegal guests who are crossing. We are begging them to come over illegally. Why would we shoot them?
Regardless if you were to spend a trillion dollars a year protecting our border with our entire armed forces... the illegals would just come by boat or visa and stay illegally.
You're a waste of bandwidth. All your claims are idiotic. The idea that illegal entry cannot be drastically reduced no matter how much money the government spends is absurd.
The coast guard already interdicts boats trying to enter U.S waters to search for illegal drugs. If that was an effective means of aliens getting in, they would already be doing it, but they don't.