You, on the other hand, have been sleepwalking through history, so unaware of how thoroughly brainwashed you are that you believe that a deeply anti-American film is just harmless entertainment. Go back and listen to Klaatu's cautionary departure speech in the context of the 1950's "red scare" to understand just how deeply--and disgustingly--propagandistic it is. As for your sympathy, you should save it for yourself. As thoroughly unexamined a philosophy as you apparently possess is genuinely to be pitied.
No doubt you think Philip K. Dick and Isaac Asimov were visionary science fiction writers of completely neutral political positions as well. In that case, I hate to break this news to you...
A LOT of the science fiction movies of the 1950s were written from an anti-American, anti-nuclear war stance. . . by a Hollywood elite that wanted to scare everyone away with the dangers of nukes. Monsters created by nuclear testing, “Them” big Ants from the Arizona desert, the “Creature from 20,000 Fathoms,” “The 27th Day,” “The Night the World Exploded,” “Attack of the 50 Foot Woman,” “The Day the Sky Exploded,” and others had as themes the effects of American atomic testing.
Many people did not see the subtle underlying Anti-American themes in many movies of the period. . . even in Hollywood Westerns... but it was there.