Humans inflict untold suffering and death on many billions of animals every year, and the overwhelming majority of humans are heavily complicit. - David Benatar

On my view there is no net benefit to coming into existence and thus coming into existence is never worth its costs.

Although, as we have seen, nobody is lucky enough not to be born, everybody is unlucky enough to have been born – and particularly bad luck it is, as I shall now explain. On the quite plausible assumption that one’s genetic origin is a necessary (but not sufficient) condition for having come into existence, one could not have been formed by anything other than the particular gametes that produced the zygote from which one developed. This implies, in turn, that one could not have had any genetic parents other than those that one does have. It follows from this that any person’s chances of having come into existence are extremely remote. The existence of any one person is dependent not only on that person’s parents themselves having come into existence and having met but also on their having conceived that person at the time that they did. Indeed, mere moments might make a difference to which particular sperm is instrumental in a conception. The recognition of how unlikely it was that one would have come into existence, combined with the recognition that coming into existence is always a serious harm, yields the conclusion that one’s having come into existence is really bad luck. It is bad enough when one suffers some harm. It is worse still when the chances of having been harmed are very remote.

Debates about the existence of God are interminable (...) In my view, though, the persistence of this debate is not surprising for one reason only: the depth of the widespread human need to cope with the harsh realities of the human predicament, including but not limited to the fact that our lives are meaningless in important ways. Upton Sinclair famously remarked that it “is difficult to get a man to understand something when his salary depends upon his not understanding it.” It is similarly difficult to get somebody to understand something when the meaning of his life depends on his not understanding it.