>Either all of Mexico can move to the US (probably not a winning solution)
Indeed, it is not.
But not for lack of trying. The biggest migration in history is the 10% of Mexico that has moved to the US since 1970. <https://www.reddit.com/r/dataisbeautiful/comments/1trqnn8/he...>
As of 2024, 11 million Mexican-born people live in the US. <https://ourworldindata.org/where-do-migrants-live-and-where-...>