Mexicans in those annexed areas had the choice of relocating to within Mexico's new boundaries or receiving American citizenship with full civil rights. Over 90% chose to become U.S. citizens.
Ukrainians who lived in Crimea got full Russian citizenship too, but I'm not sure if that makes it fair and a done deal for the rest of the Ukrainians.
But I thought my other point was more important. Most Americans are newcomers to the Americas, a few generations tops. Most Mexicans are not, and nobody really asked them before erecting new borders on their lands.
But I thought my other point was more important. Most Americans are newcomers to the Americas, a few generations tops. Most Mexicans are not, and nobody really asked them before erecting new borders on their lands.