>sees life as one of the biggest problems on our planet,
No, overpopulation of some areas. You missed the whole point. And i think that was what unregistered was referring to... (he'll correct me if i'm wrong, im sure

).
When thousands die of hunger due to lack of food and resources... birth control is the issue. You dont have enough food to go around, and there's no point in debating it, each passing day the natural resources of the planet keep getting thinner. Even a good productive country is usually a developed country that "offers" alot of help to those 3rd world countrys.
Most of the large populational growth is located in 3rd world countrys that have families up to 10 children, and cannot support them. It's not about genocide, it's about getting a degree of control in those overpopulated areas. I see that you prefer to have thousands die on a daily basis, than a working birth control program to not only reduce those deaths (and a great deal between the 1-3 years of age) but to being able to support the existing population, wich i must say, it's in a tight spot. It's folly to think there's "enough to go around". There's not, it's not evenly divided (most of it that reaches those countrys is aid related), and it's not going to get much better over time. Who's in denial if you cant see these problems?
These are not for the developed countrys, they have reached a point where the population mainly regulates itself, having one or two children, or even none, due to the faster "pace" of life, and costs. But in 3rd world countrys the things change, specially in Africa and Asia.
Taking China for an example (as you mencioned), they have a strict populational control, because they have to or the country would collapse with an excessive growth. So they have limitations on how many children a couple can have. Wich if recall it correctly, its 4, with special attention to couples that have no more than 2. The state supports those smaller families giving them benefits. Sterilizations only occur after the 4th children. And if you must know, knowing the current and having a good ideia of the near future of the economical, populational and technological situation of China, i cant say i blame them.
Nobody is killing anybody here, they're ensuring that they can support most (yes , most) of the current, and future population by knowing how much it will grow, and acting accordingly. Its being responsible. Its not supposed to be pretty, and nice, but it IS the responsible thing to do to avoid a larger problem in the future.
Of course, there's also the debate about assisting those countrys in developing methods for food production, resource management, etc ... but thats another issue, but equally important.
PS : UN is not a government (see previous post)... and unlike you said, they are working on these issues and reaching valid conclusions.