They already cross our borders (25 miles into it) and then sit at loading areas. They will be subjected to intense insections and oversight.
These companies are not going to risk losing their access to the US by selling space to illegals (which will net them how much compared to their transport industry?!!). Come on, use some common sense here.
The number one economic driving force of the Mexican economy is illegal activity in the US. This is well known, well documented, and well accepted. I’m not sure what you think they are going to start exporting across the border that they can’t already legally ship now. This will increase their main economic activity in this country, which is criminal under our laws.
US/Mexico trade in 2006 was over $300 billion. But these “corrupt” companies are going to risk their piece to that by selling space on their rigs to illegal aliens.