Why does pollan think that "human choices" are to blame in creating such an oversupply of cheap, processed foods?

Why does Pollan think that "human choices" are to blame in creating such an oversupply of cheap, processed foods?"

-Humans have created our own cheap food bc of our lifestyle

-our culture is fast, cheap, and convenient

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.