The whole "the world is so screwed up, it would be wrong to bring life" argument doesn't hold up. First, most people who say things like that would rather be alive than dead, and betray that thinking with their own actions. Second, if you really felt that way, it doesn't take much but looking at yourself, your peers, and the generations before you to see that nobody currently on this Earth is on their way to saving it. The future generations are the only hope there is.
I'm not saying that people need to have kids, and In fairness people who don't want kids have had to put up with a lot of bull crap moral arguments urging them to have them, but the inverse of that position (making going childless the moral necessity) is just as flawed