To be sure, a sevenfold increase of the world population over two centuries has stressed the planet to its breaking point. But the problem is not strictly the number of people per se. It is how people are behaving. It is a question of their lifestyles.
Money is not everything and there are other things that are more valuable in life. Everything has a price, but not everything should be for sale.
Some people live in the luxury of choosing what to eat and what not. Some are so desperate to have a bite of food to survive the day. This is unacceptable!