Then here we part ways, as I tend to think that we can get slightly more productive use of stupid people than fertilizer. Nonetheless, the basic point here stands: it's the stupidity, stupid.
Interesting. I met a person with severe down syndrome once that was very polite and kept the cafeteria clean as a whistle. "Stupid" people might just be made for different tasks me thinks.
However, I think the bottom line is that no one should be forced to live if they hate their life. If an autistic kid is sent to work on a farm but he has no joy in life doing it, then what's the point? This is why I think suicide should be legal.
So I guess the new question is how much mental capacity does it take to find something worth living for? Is there such a cutoff? If there is, then I think killing people below this line would make sense.
"Death to the life that is only suffering!"-Nietzsche