There are other means to survival. Cooperation is one. Humans are a social species. Without other humans, you wouldn't survive very long out in the real wild, where other predators are much bigger and much meaner than humans, and with a lot more physical capabilities.
Thinking capacity is another means of survival. Without the higher level intelligence of humans, our relatively weak, slow, and unprotected physical bodies wouldn't allow us to survive.
Trees. Trees aren't predators. They don't go around raping and killing. Yet, they are extremely prolific. They survive and grow based on cooperation with other trees, and with fungi. Their root systems are extremely.complex, and they share resources between each tree through the root system. They also get most of their nutrients from fungi that are attached to their roots. And in return, the tree supplies the fungi with much-needed sugars.
The fungi get the minerals by literally drilling into tiny little pebbles of rocks. And other nutrients by infecting certain insects. Which they then feed into the trees' roots. The trees produce sugar, and feed it back to the fungi.
It's called "symbiosis," and is a hell of a lot more successful of a method of survival than outright killing competitions.
