Comment The Fourth Rail (Score 1) 146
we need to cut the human population in half in the next 100 years (by breeding less, not killing people off)
Pretty sure the Nazis also tried forced sterilization. It did not turn out well.
Otherwise if you wanted to see an ever stronger reaction than telling people you are going to kill a group of them off, then try to say you are now telling them who they can and cannot fuck.
Or you could try a middle ground like China's "one child" policy, which leads to other disasters...
Or you know, you could try not telling people how to live their lives according to some poor rationale you've developed as to why they should obey your whims, and they in turn will be somewhat less likely to kill you.