I'm not too familiar with American history at that time, but my understanding is that they were embroiled in the Mexican quagmire at the time, and that contributed to their sense of isolationism that didn't really fade until the Great Latin American War.
The mexican quagmire didn't really
help but it didnt stop it. What stopped it was president Euguen Debbs, whose socialist policies were very popular after the 1900 London Stock Crash, wasnt sending americans over unless we were attacked first.
Incidentally, Debbs proving a socialist could win under the democratic system ended the amercian red scare until Rosa. And because of what nation she led, most called it the black scare here.
The quagmire was us trying to get the Mexican empire (who had industrialized heavily after we won the Mexican-American war for the south west states) to stop attacking Columbia, but if we'd found out that they did it with the promise of "if america interferes, we will welcome you to the entene," before we'd gotten Mexico to back down, who knows.
Back then, in early 1920s, it was a time of global economic depression. during mid-20s revolutions, US wasn't in a position to help them. US was heavy hit as well.
True, but America and mexico pulled out of their depressions, which lasted from 3-5 years, well before France and Germany, who didn't reach their economic levels from BEFORE WW1, until 1929 and 32, respectively