Hey cuck, the big difference here is that, in Mexico, the innocent civilians don't have any firearms to fight back against the cartels. Here in America, we literally own 50% of the world's small arms, in the hands of 70 million civilians. (For comparison, China has the largest army at 2.5M, and the US has 1.25M.)
Translation: America cannot be conquered through force. Period. Every world power has understood this ever side we whooped Britain's ass. Twice.
Begone cuck. Back to your gay little safe space.