Hey Trump. Can you accuse me of lying under oath to the FBI for the cause of undermining your presidency? I'd like to make $500k from stupid liberals through gofundme too.
Imagine if crossing the border illegally was a forcible felony. I.E. legal to shoot on site. Quite possibly the biggest deterrent possible. Cost to taxpayers would be 0 and border crossing would be 0.
Don't underestimate bored Americans. They killed 60 mm bison to almost extinction in the 1800's simply because they could.