They need a time machine to go back to 1945. Their minds would change if they were going to be part of the 1946 invasion spearhead of Japan.
Unfortunately, this will be the "Time Masheen" of the future...
"We're gonna take you back, to the year 1939 when Charlie Chaplin and his nazi regime enslaved Europe and tried to take over the world... Narrator: ...But then an even greater force emerged, the "un"
"...and the "un" un-Nazied the world - forever. "
That MIGHT get thru their fog of liberalism.