World War II was a conflict between 1939 and 1945 that involved all the world's major countries. It was the most destructive war in history and millions of people were killed. It was fought between the Axis (Germany, Japan, and Italy) and the Allies (Britain, the US, and the Soviet Union among others).
Antifederalist is the answer to the question
No but I’m sure at the time for them it wasn’t seen as bad had they known they’d leave a trail of famine, slave trading and small wars they’d maybe think twice but certainly there motives at the time was land, power and money
A.
After the Civil War Abraham Lincoln was just the first of many US Presidents to encourage immigration through economic and politic measures (one of them was to give free land to anyone willing to work it). The country needed people to rebuild itself and to settle the west of the continent. And everyone was aware that there is plenty of space.