You say it’s improved your life and the lives of those adjacent to you, your family members, friends, and your kids’ friends. But you haven’t said its improved your kids life. I think that’s what the OP was talking about. A being who doesn’t exist doesn’t desire to exist so making new life isn’t doing them a favor and only exposes them to harm.
I mean I’m not depressed and I love living, so I wouldn’t be projecting depression on to others.
I agree that people can experience good things as well as harmful things, but it’s not a risk worth taking. Giving birth is gambling with human life. You never know if someones life experience is going to be overwhelmingly positive or negative, but if they are never born, that’s not even an issue to worry about.