I agree.
Here's my plan:
1) Invade and conquer Mexico.
2) Move the US-Mexico border to a line roughly connecting Puerto Vallarta-Tampico, with Guadalajara on our side of the line.
3) Make the first 50 miles (25 miles on a side) a military frontier, to prevent any accession to US territory from the South.
4) Form a legion of Mexican troops with US officers to patrol the military frontier, US citizenship for ten years of unblemished service.
5) Require the new Mexican state to demobilize its army and to demilitarize its southern border with Guatemala.
6) Standard English the official language of South Texas, Greater Sonora, and South California, with mandatory education in English only.
7) Free transport to "Mexico" (now North Guatemala) for any US inhabitants who desire to leave.
How's THAT for a new focus?
Sounds good.