Only because people are so used to the idea that people produce new people, even though the world is full of risks, and even though it is clear that they will suffer at least a few serious injuries during their lives, and of course they will die at some point, people ignore the fact that they, in their decision to reproduce, expose their children to these injuries. But if they think about all the harms that their children will go through, and place them against their desire to reproduce, do they really think that all the pain that will be caused to their children, all the illnesses, all the frustrations, all the disappointments, all the fears, all the anxieties, all the moments of boredom, all the feelings of loneliness, all the helplessness, the inevitable death, and all the harm they will cause to others, is worth their desire to procreate?
And again, the fact that the parents do not want or do not directly cause all these injuries does not change the fact that they allow all these injuries since they know they will occur and choose to create this situation anyway.
If people did not avoid the responsibility they have for these injuries through the fact that they created someone vulnerable in such a dangerous world, and looked at themselves as the ones who caused them, it is hard to believe that they would claim that it is morally justified to cause someone all these injuries so that they can realize their own desire to have children.
People have to understand that there is a price for the desire to be parents and that is that the children will experience pain, illness, frustrations, disappointments, fears, anxieties, boredom, loneliness, helplessness, and eventually death.
Most people aren’t that cruel, they just don’t think about it that way, and that’s mostly because they barely give it any thought at all. And the few who do bother to give some thought, are very biased by the very pro-natalist world we live in.
In principle, the desire to do something that exposes someone else to definite harms cannot stand as an equal interest against the desire of that someone not to be harmed by those definite harms. When something is very dangerous for others, even a very strong desire to do that something cannot justify doing it. And in the context of reproduction, since it is the realization of people’s desire to be parents that exposes other people to definite harms, people should give up their desire to be parents in order to prevent those definite harms from inflicting others.
Since it is never necessary to create someone, but it is always certain that the one who is created will experience some harms during life, and will cause some harm to others during life, to create someone is always to cause unnecessary harm. And causing unnecessary harm is immoral.
The world is full of dangers
Living beings are very vulnerable and to many dangers
It is not necessary to create anyone
Therefore reproduction is to unnecessarily bring together dangers and vulnerable creatures