The child isn’t born yet, so the idea of “I want them to experience all the joys of life” is all coming from your wants, your needs. They cannot possibly be harmed or hurt if you choose to not let them experience these joys— however, they will (we know this for sure) be harmed if you choose to bring them into existence.
Of course there are many people that counter this, saying things like, “You must experience pain and sorrow in order to grow,” “What doesn’t kill you makes you stronger”, or, “That’s just life, you must learn to deal with the pain.”
They rarely stop to think and realize that all those things they are saying are just defense mechanisms we commonly use to keep ourselves going.
de·fense mech·an·ism (noun)
a mental process (e.g., repression or projection) initiated, typically unconsciously, to avoid conscious conflict or anxiety.
Why would we want to bring someone into a world where they would have to constantly use defense mechanisms just to cope with every day living?
Yes, it’s encouraged to tell those things to other people, people who are already in this world, but when others use that to defend why we should bring in new people, that’s not right and only serves to further justify the anti-natalist viewpoint.