Agreed. But that will take years.
What needs to happen between now and November 6th is deploy a hundred thousands active duty, Reserve, and Guard troops to the border.
If Mexico does allow the Invasion, then our troops need to press 5 miles into Mexican territory, set up detention camps, and tell Mexico that millions more of Illegal Invaders are on the way south, coming to you.
The UN will scream bloody murder. So will the EU, the Democrats, and the media.
Tough crackers.
At our southern border, block them while they are still in Mexico and then tell Mexico it is responsible for their care and feeding since Mexico allowed them entry through Mexico.
I like your plan, but no invasion of Mexico until the Nov election is over.