Well actually it is, cancer cells are essentially reverted to single cell organisms, but people interact for productive ends, not just growth for the sake of growth but growth for the sake of longer lives, better nutrition, more freedom to travel and move about, more comfortable dwellings, better education, etc. I don't know why this anti-humanist movement that seems to have started with Henry Kissinger is so fucking popular, but if you think there are too many people on the planet, eliminate yourself, leave the rest of us the fuck alone.