First thought that struck me was the Star Trek Episode where the scientist found out Warp Drive was weakening space-time, so that it could 'rip open'. The scientist were shunned, but eventually did prove it.

But even then, the Federation could not "stop" using warp drive.

It was one of first instances I saw that even in Star Trek, with all the high ideals, once confronted with something that would shut down progress and travel, they also just kept on going. They didn't do anything about it.

We can't even fantasize about humans coming together to solve a civilization ending threat. Stories where we do come together, we reject, they seem un-natural, they are deemed un-realistic.

https://en.wikipedia.org/wiki/Force_of_Nature_(Star_Trek:_Th....