I feel like this is a pretty polarizing subject, and I understand why people (especially parents) take it so personally. It is really hard to admit that something you did may have been selfish. I have the most amazing parents who are unconditionally loving, insanely supportive, and gave me a blissful childhood. They are incredibly empathetic people and had the means to provide me with lots of support. And it's not like they spoiled me - they raised me to be very responsible. I say all this because a lot of people here had awful or abusive parents, or they had loving parents who tried their best but may not have had the means to be supportive.
Despite having what I consider the ideal parents, I am literally miserable and want to die. I wish I had not been born.
My parents are so selfless, and I would NEVER consider them selfish people. Nevertheless, I do think procreating is morally wrong from a philosophical point of view. Life is full of suffering that even the best parents cannot prevent or foresee, and to me the risk/inevitability of misery is not worth the potential joy someone can have but would not miss if they were never born. I do think having kids is a selfish act - at the end of the day, you're doing it for your own happiness/desire to be a parent (assuming the child is planned). But I don't think the parents are necessarily selfish, because they aren't thinking that way. They are usually thinking of the joy they can share with their child, and they are of course influenced by a society that is CONVINCED life is a gift, so they don't even question it. Also, we are all influenced by our biological intuition which is also CONVINCED having kids is a good thing. However if I were to have kids, I would consider myself selfish because I don't think it's morally right but did it regardless.
I think we can acknowledge that procreating may be morally wrong (although feel free to disagree with me, I am receptive to other points of views!) but that doesn't make parents bad people. We all would do things that are selfish or wrong, if society heaped praise on us for it and if our biology was wired to want it. We wouldn't even consider that it is wrong, in that case. Personally, I think a lot of people have kids because life is generally pretty sucky and they want to relive the bliss of their childhood in some way. Although that is purely anecdotal.
Also, this does not apply to people who are abusive parents. Those people should not have kids, and I am so sorry to anyone with that experience.