The US should sue Mexico for the utter corruptness that is their state. They have enough oil resources to the point that they are an exporter. Yet the wealth that is created by that resource trickles only up to the very top instead of across their population who are the ultimate rightful owners of that resource.
The powers that be in Mexico depend upon our lax and pourous immigration policy. If we effectively shut down that industry the power structure such as it is in Mexico would have to deal with the masses themselves instead of using the U.S. as a convenient relief valve.
If that's all it means why didn't they just say "we care blah blah blah whateveryousaid" instead of threatening force? Obviously it means they are willing to use force against us if policies in our own country negatively effect their citizens. IS this how we should behave with say, Iran?