> Population growth is a real problem, we are living in an finite system called planet Earth. With 1/4 of the world population everyone would live better
First half is true, second half ignorant. Your life is better because somewhere out there are half a dozen poor people mining resources and building goods for you, for a tiny fraction of your income.
I am living in that country where poor people mine resources for others to live good, so I know what I am writing about. My family is from a mountain area where timber and cow farms were the only resources they lived on, now we can barely get enough wood for maintain the buildings because the demand is so big that we either limit the consumption or risk massive deforestation. Less people means less demand and more resources per capita.
Nobody is talking about happiness and nobody could agree with everybody on what that means. The word here was "better" and cheap labor in poor countries objectively makes our lives better, because we can afford more goods (both needed and unneeded) with our incomes and expectations regarding working conditions.
First half is true, second half ignorant. Your life is better because somewhere out there are half a dozen poor people mining resources and building goods for you, for a tiny fraction of your income.