So you want to eliminate those human beings who you deem as unproductive members of society, but have no standard means of measuring productivity at all? Explain in more detail what you mean by a productive member of society, and then explain how abouts you plan on measuring individuals based on this...pleaseMeasured as a human being? How do you measure human beings?
We can measure their productivity, if that is what you mean. And theirs' is next nothing,if not simply nothing.