Analysis of information sources in references of the Wikipedia article "Human extinction" in English language version.
Being brought into existence is not a benefit but always a harm.
Although there are many non-human species – especially carnivores – that also cause a lot of suffering, humans have the unfortunate distinction of being the most destructive and harmful species on earth. The amount of suffering in the world could be radically reduced if there were no more humans.
When we think of existential risks, events like nuclear war or asteroid impacts often come to mind.
In an era of catastrophe and crisis, the continuation of the human species in a viable or desirable form, is obviously contingent and not a given or necessary good. But considered from the standpoint of animals and the earth, the demise of humanity would be the best imaginable event possible, and the sooner the better. The extinction of Homo sapiens would remove the malignancy ravaging the planet, destroy a parasite consuming its host, shut down the killing machines, and allow the earth to regenerate while permitting new species to evolve.
The great bulk of existential risk in the foreseeable future is anthropogenic; that is, arising from human activity.
Human beings are destroying large parts of the inhabitable earth and causing unimaginable suffering to many of the animals that inhabit it. This is happening through at least three means. First, human contribution to climate change is devastating ecosystems ... Second, the increasing human population is encroaching on ecosystems that would otherwise be intact. Third, factory farming fosters the creation of millions upon millions of animals for whom it offers nothing but suffering and misery before slaughtering them in often barbaric ways. There is no reason to think that those practices are going to diminish any time soon. Quite the opposite.