Can you imagine a collapse of the Mexican central government? Perhaps army units around the country would align themselves with regional leaders or drug lords. Next would come the potential for armed rivals fighting one another for central control. What we’re talking about is Afghanistan just after the Soviets departed where there weren’t two sides in a civil war, but several. What we might experience is hundreds of thousands of refugees on our southern border.
Our armed forces are currently stretched to the limit due to the Iraqi adventure. What’s available to secure our southern border or insert into Mexico to keep or restore the peace? China has spent the past several years working on its relations with Central and South America, primarily in places with oil, like Mexico. How soon could the Chinese have a division or two on the ground, in Mexico? When would they leave?
So, there’s a little bit of the nightmare scenario. Do I believe any of the above will happen – no. Could it? Yes.