For what purpose?
Most leftists used to posit policy decisions were made "for the common good", or "for the greatest good for the greatest number".
This educated fool is changing that to "the greatest good for the ruling class". Because, the ruling class will not need a large population for industrial power or to make war.
Many years ago C.S. Lewis wrote a response to a man who claimed he could be a “good person” without being religious. C.S. Lewis conceded he, the atheist, might have some decent notions about what is “good” but pointed out that, in the long run, his mindset would make him diverge drastically from “religious values.” He wrote that if a person did not value mankind as a creation of God, eternal and invaluable in its own right, then the godless would inevitably seek to preserve the most permanent creation they could see, which was civilization and its monuments. Hence decisions would always favor preserving cities, machines, sciences over the value of human life. It is idolatry at its peak.