With regards to #2, Wendell Willkie winning the republican nomination over the isolationist candidates was extremely fortuitous for FDR and Churchill. There was no real desire from the US population to get involved in another European war, but Willkie (lifelong democrat with no previous political experience) securing the republican slot (and basically guaranteeing FDR's win with no policy adjustments) made that issue a moot point since his stance on the war was similar to FDRs. Willkie eventually ended up with a position in FDR's administration.
The only truths taught in US schools are those beneficial to the empire - it's best viewed as propaganda.
The only truths taught in US schools are those beneficial to the empire - it's best viewed as propaganda.