Are we doomed to fail because we have an inherent flaw?

To be fair, so does a plank of wood...

But Gort was the alien destroyer and Klaatu was the human clone mouthpiece, being a clone he could reason like us, and come to understand the flaw we have and see ours was not a deliberate destructive tendency but rather one gained through lack of ability to visualise outcomes.

@IzzyCastro: ...but Keanu played him so inhumanly, and emotionless, that the message of the story, "BE GOOD TO EACH OTHER" gets lost in the telling. In the original, you got the feeling that Klaatu wanted us to be kind and loving and hugs-for-everyone... and to take it to heart, because if we set foot offworld and still haven't figured this one out, our aggressive species would be destroyed. In the remake, the feeling you get was-- we must be destroyed because although we have a grasp on our intellect and ingenuity, we lack any control emotionally, making us a highly volatile threat to other lives outside of us. That the solution is to be an emotionless drone, like Klaatu. Very different message.

@GwydionFrost: you're talking about different eras, the former version made in the Fifties with a sense of impending nuclear destruction, the latter post cold war, in the age of ecological doom.

@IzzyCastro: And both considered inevitable during each era, respectively. We're supposed to be good, caring, loving humans was the message against the Communists. I'm confused why polluted water's solution would be Adderall.