Kolbe's argument might be persuasive if the defense in depth theory managed to get the hundreds of Border Patrol people and their vehicles parked in such spots as Sonoita and Douglas into the field. It also might work if Border Patrol personnel were given random polygraphs and drug tests to reduce the corruption within the organization.
Which is why Kolbe's argument is not persuasive. All he's doing is make it seem like he's involved in the illegal alien and dope smuggler racket himself.