[FatherofFive]

You really think Mexico is going to sit back while we invade? And what if all those people displaced by the invasion head north?

That's why we have the wall. The few families that run Mexico will quickly fold. Some of the army and police will think about supporting the cartels, but they will quickly fold as well.

But most Mexicans will support an invasion

[mrsmith]

But the hard part is getting them to agree to our troops’ actions before it happens.
I think they would if Mexico had a reasonable amount of control of our actions, and got 80% of funds we recovered.
Also, the cost of our forces would have to be paid by us (and the 20% of finds recovered).

Mexico is mighty crooked though. It would be a tough sell.