We've lost enough Americans in places where we had no business being.
We've wasted enough of our money on wars.
There's so much cheap vacant land in the US, look at Nevada, New Mexico, Texas, etc. we have no "need" for more of it.
Hispanics (with the exception of Cubans) vote for socialist policies (80%). Suddenly we have 126 million more people and tens of millions more dem voters.
Do Mexicans really want an American take over? Is it fair for Americans to continue to be the global police?
Here are some reasons why this is a bad idea: