In as much as we resemble cancer, yes, I struggle to see how the human species works in harmony with the rest of nature, as it exists on Earth. If we want to say we're a part of nature, we should consider modifications that are improvements or at least not wholesale dismantling of planet-wide ecosystems, all in the neurotic hope that science will come in at the last moment or save the day. Or guns will. Or spaceships will. None of them seem likely to. At least not save anything beyond the dregs at the bottom of the barrel.

Before all the cyanobacteria turned up, earth had a nice inert atmosphere. They start with their newfangled photosynthesis and suddenly the atmosphere is full of this horribly reactive oxygen stuff. Now the planet is crawling with life, irreparably damaging the unspoilt beauty of our natural geology. You can hardly find a piece of rock on the planet that doesn't have algae or lichen all over it. Cyanobacteria ruined this planet for their own selfish ends.

Not to mention that they caused a massive extinction, eradicating most species that can't handle oxygen, except a few survivors that stuck to a few low-oxygen niches.

Nature does not work in harmony with nature. Natures eats other natures.

Nature is brutal and ugly from an ethical standpoint. Eat or be eaten. Poison, trap, munch, crunch. --And one does not generally observe moral behavior among animals, one does not observe 'selfless' acts of compassion to other species. Con-specifics can be the target of some 'selfless' acts, but in fairly limited scopes.

The only reasons we look at nature and see harmony and beauty are 1)we enjoy patterns 2) we enjoy colors 3)not many things eat us anymore.

Exactly. We only think empathy, kindness and gentleness are important because of our social-mammal-centric viewpoint. We only think nature is "nice" and "good" because we're largely no longer the victims of it.