$1:
Do you, Shep, trust that the Government will kill the right people?
Destroy the right cultures? Murder without bias?
$1:
Or, Shep, would you like to be in charge of this World Genocide Program?
OK, you've more than proven that you're the proverbial spoon in a drawer full of knives.
A. Allowing people to die naturally, after a long prosperous and productive life, without reproducing, is not killing them.
B. I said it would be a program that would last several generations before the goal was reached. I know higher life forms tend to outlive lower ones, but I'm pretty sure I won't live much beyond your life expectancy.
C. If I were in charge, you'd have your answer in short order. But hey, maybe if we wanted something done in the short order(as you seem to blather on about) we could hire a communist. They seem to be experts on butchering tens of millions, of living people, as they try to re engineer a society.