Why such negativity?
I would suggest that they knew how to survive. After all humanity is still here.
The reason the systems human beings create that are imperfect is because those systems are created for the Wrong reasons.
Once you human beings learn how to look at and see 'the world/the Universe’s properly and Correctly, then this when the the True improvement actually begins.
Yes
you are back to negativity.
By the way, everything human beings have created was once doubted, by someone.