I recently rewatched Tarantino's Inglourious Basterds and Hans, the Jew Hunter, compared Jews to rats. You may want to stay away from the "rodent" comparison for anyone in the future. Don't think you meant anything by it but that made me cringe like hell. My point is that Americans believe we'd kick Mexico's *** with a quickness...while also complaining that Mexicans are "taking over" the country. I just find that funny, same as saying we've got lots of guns so victory! What does that even mean? My dad has guns. That doesn't mean if push comes to shove he's going to arm up and begin shooting as if we're in The Last of Us. That's that civil war fantasy some folks won't let go of.
Nineteen hijackers in 2001 changed America forever, nearly 3,000 people died, and we put ourselves in two wars in the Middle East, one lasting around a decade while the other lasted two decades. All of that because of 19 terrorists. Now let's say we're being attacked by one country directly to our north while the country directly to our south does the same. That wouldn't be an easy victory for our side. And if we had started it (because why would CN and Mex want a war with us to begin with?), we're in it alone, unless Putin wants to "help" us.