I think it's less "nature knows better" and more "we usually don't know enough"
Sentient eating sentient, everything being at constant warfare with everything else- the Grass wars the trees for the light. Add to that, the likelihood that nature will adapt new defenses in our lifetime, by for example having animals propagate hyper-allergenic plant-species - and you can begin to grasp why humanity does not want to look at the real, rather at the idyllic paintings we made ourselves.
No need to appeal to emotions this way. At the individual level there are only losers, and we all die. At the universe level, whatever happens, happens, and it’s up to us to find beauty in it.