Natural selection automatically culls out members of the population that can’t survive, and sadly, that is what we are seeing today
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no we do not. Natural selection is only going to weed out those that can’t survive long enough to reproduce. The diseases that obesity causes occur way after people stop having children.
People on a western diet are certainly capable of having lots of kids and they live much longer (and lower youth mortality rates) than those who live in primitive societies. probably for other reasons besides diet. But those people do choose to have more kids than most of those in the west.
“Natural selection is only going to weed out those that can’t survive long enough to reproduce. The diseases that obesity causes occur way after people stop having children.”
I was typing too fast. You are correct about this.
It used to be that the weaker and infirm would succumb to different types of infectious diseases, many times in very young ages. That is not the case so much anymore.
But a selection of sorts is taking place at a much older age now. Many people are living with chronic health conditions that take away much of the quality of life, or they are dying early from heart attacks and such. Most of these types of conditions are caused by incorrect nutrition and lifestyle.