They'd treat it as a law enforcement matter just like Clinton treated terrorism.
I've said for years, we should've invaded Mexico instead of Iraq. It's interesting that we don't have a "responsibility to protect" when thousands are murdered in border towns but threat of "humanitarian crisis" thousands of miles away calls for missile launches, bombings and air strikes.
The death toll last year was 15,237, almost half of the 34,600 since Calderón took office four years ago. It's getting worse, not better. At the link, it claims we're spending $1.4 billion on the "Merida Initiative" in drug war aid to Mexico.
That includes 4 brand new Black Hawks while CBP flies the oldest A models in existence.