That is not at all what I said. If you are trying to have a net positive effect in the world, and you have the means to do so, raising a child with a good education, instilling the best of your values in them, etc., is a fantastic force multiplier and a good way to ensure that someone like you keeps being a net good in the world.
Beyond that, raising children has brought me more joy than anything else. I would not wish a childless life upon anybody. I am optimistic that we can teach teach our children to find solutions to the problems they will have. This is not just passing the buck: every generation needs to work for the betterment of mankind. I just want to help raise the smartest, strongest generation yet.