Again, we need to distinguish the descriptive and the prescriptive theses of humanism. It may or may not "help," as you say. I'm ambivalent about promethean humanism. See, for example, my article on environmentalism, linked below.
But I have a hard time denying the evidence that this is what we actually believe and are systematically doing: we try to live like gods by building another world to replace nature. That's been the "satanic" mission of civilization. Moreover, I appreciate the existential angst and disgust towards nature's mindless indifference to our welfare and towards the universe's monstrous self-evolution to nowhere.
Of course we should study nature, but that knowledge has only empowered industry to feed us what we want, a humanized, artificial world that's at our beck and call.