I mean, yes, they could, but would they? What would be the realistic result of such an action? Would the US then stop and go “Well, I guess we’ll have to stop antagonizing the cartels.”. I would guess that such a thing would instead be a Pearl Harbor moment, and I think the cartels know this, too. The cartels don’t want to act out your personal nightmare scenario; they want to do things to make the US stop bothering the cartels. Instead of mindlessly scare-mongering, figure out what that action would be, and ask yourself if a war with the cartels is worth it. It might or might not be, but be realistic about it.