Essentially all animals on Earth are a virus though. Do you realise how destructive elephants are to their local habitat?
We're just the most effective virus
I still think humanity will eventually triumph through the use of science though. Or maybe not, maybe we'll just rape this planet for all it has, then move some where else!
But all the other animals were in sort of equilibrium with their habitat (maybe in the very long term they would continue to change, but in the short/medium/near long term it would remain constant).It had all sorted itself out nicely, and, at least to me, looked quite attractive. Humans come along, and burn stuff, cut stuff down, throw rubbish everywhere, kill things off... Generally reducing the attractiveness of the world - I'm not saying that humans can't do some lovely things - Some places look really fantastic, and others have a small impact on the environment, but in general, humans have been bad for most other living organisms around them.
At some point I expect humans to reach a tipping point where harm is either reversed, or at least no more is done, and then we will remain in equilibrium with everything else for a while. The traumatic times are when things change, and our change from gatherers to internet users has had it's ugly parts.
I like the idea of humans (and all other life forms) just being an infection, or virus... Just like in our own digestive system, there are oodles of different species of bacteria all living in their own spot in relatively constant ways. Then, once every now and then, something happens - we go on holiday and our diet changes (so the habitat our gut bacteria live in changes), and this can change our internal environment, and result in unpleasant consequences. Other times, a new life form may be introduced - salmonella or something, and that causes another big upheaval, until everything settles down again. Humans are like the salmonella of the globe - Earth ate from the egg of life, but unfortunately caught homo sapienella, and until sapienella decides to behave itself or dies out, Earth will have a tummy upset of its own.