Crushed flowers, crushed dreams, crushed ideals. That is what Mobile Suit Gundam: Iron-blooded Orphans all about. Japanese always like this kind of 敗者の美学.
Sad story. It somehow tells the truth and reality. From my first witness to the civil uprising in Beijing in 1989, for all those revolutions over the world, some were successful, mostly a failed attempt, many more were just a replacement of new dictatorship. Villains always win. History tells that the little oppressed ones just keep your head down, don't fight the authority, don't question the convention. But the little oppressed ones will still rise up, quashed, and rise.
