I don't know. I just chalked that whole Boomer thing up to Fallout's odd-ness and simplified political history. The USA was the beacon of capitalism (which is associated with the Republican party and most conservatives) and China was the beacon of communism (which is what ultra-liberal's dream of). Also, the whole Fallout universe doesn't exactly try to avoid being offensive either; what with the level of blood, gore, sixual innuendo, foul language, etc. It's not all that surprising that some people wouldn't be offended... But there are also people like me who just laugh at attempts to be offensive because nothing really hits that nerve.
Pretty much, they went into the vault with nothing but Republican 50's red scare propaganda. You give Gandhi that amount of arsenal and hes going to shoot something. Are they Republicans? Of course they are, the only people that weren't were Hollywood, some journalism and media and high immigrant states. Although I think if a lot of the Democrats from those days were to run today, they'd be considered Republicans.
