didn't go to war against the Axis supremacists until they expanded outside their borders... Your parent comment is probably supposing that all supremacist move

didn't go to war against the Axis supremacists until they expanded outside their borders... Your parent comment is probably supposing that all supremacist movements eventually wind up doing this. Which is not a ridiculous suggestion- a fundamental precept of supremacist movements is usually the idea that the supposedly supreme group has a right to rule, and such ideas have a history of leading to invasion & conquest.