FDR was reluctant to join the war for obvious reasons. But when the great socialist utopia (USSR) was attacked by Hitler, FDR reversed course and some speculate opened Pearl Harbor to the Japanese attack, less than six months later. WW2 was then in full fury!
But why didn’t we declare war on Germany when they sank The Reuben James in October of 1941? It would have been a perfectly legitimate Casus Belli.
I’ve always found it amusing how the Left ping-ponged about the war:
1. Hitler begins Germany’s quest for “Lebensraum”: “War now! The “right wing” (LOL) Nazi menace must be stopped! Germany learned nothing from WWI — we must teach them another painful lesson! It’s up to us to save the world!”
2. Hitler and Stalin team up: “No! Wait ! Stay out of it! Avoid foreign entanglements! Shed no American blood! This is Europe’s problem, not ours!”
3. Hitler and Stalin break off their engagement, leaving Mother Russia (and kindly old Uncle Joe) vulnerable to Hitler’s megalomania: “War is necessary! We must pay any price and suffer any amount of losses in order to save Russia, er I mean stop Hitler! It’s up to us to save the world and make it safe for Communism!”
(Oops, wait, scratch that last one....)