Overpopulation.

There are over six billion people in the world.  Why are people so adament on saving as many human lives as possible?

"Overconsumption and overpopulation are not compatible circumstances."

Civilisation has been overpopulated for much of it's existence, France during the 17th century, which could be considerred the richest and most populous nation in europe at the time experienced no less than 6 major famines. Famines are caused when there isn't enough food, yet France with it's advanced agricultural economy couldn't avoid famine. Why is this?

It is because population had reached it's max, it wouldn't be until the industrial revolution that people could get more out of France's land. The peasants were eating the absolute minimum in order to stay alive and work the fields. When there was a drought there wasn't enough food to support everyone and a portion of the population would simply starve.

You are stupid for not recognizing this.

You can decrease consumption in order to allow populations to continue to increase and force everyone to eat less, but it doesn't take an IQ of 80 to realise you starve if you don't eat enough and eventually population will reach it's maximum.

Do you want a world of people who can eat all they want or a world of people on the brink of sttarvation who are forced to stamp on each other's faces in order to gain a decent standard of living.

Your call.