I’m not a zealot on the subject but I do believe some form of equally-distributed sterilization is the only way the human race can be saved from itself. That’s a very hard conversation I’d like to see broached.
If you mean non-random, then who decides? Morality, productivity and purpose are culturally and individually relative. Having the majority or even a powerful minority decide what future children should be born is even more authoritarian than the first approach.
If you're worried about the planet not being able to support too many people, there are many other options that promote kindness, respect and privacy while promoting a sustainable environment.