insider說的很明白

There is no plan to reduce the population, that is fully in the hands of the people.
However certain events have been seen as just that while they are serving another purpose....a misconception.
Just because it comes across like population reduction does not mean it is exactly that. Really, if the goal was population reduction, it would have been done a long time ago in a span of a few weeks.
In fact the opposite is more true in most areas on this planet.
What you said could happen but it would be done by the ones who control the lower areas.
The ones up higher do it through the daily items you consume.