Actually, I kinda want to say more than that.

It's a movie about a guy who has grown cynical from years of anti-fascist action, though he's bit tsundere about his allegiance. In the end he chooses to bear the jealousy over his lover and abandon his life of convenience and comfort to fight for what's ultimately right.

It's a movie that resonates all these decades later, forgoing easy answers for a real stance. And it's amazingly quotable.

Also remembered this video essay about it.