Who disagrees with "in a purely abstract sense we already produce enough food for everyone currently alive on Earth to hypothetically be eating 3500 calories a day; there's tons of land and even unoccupied homes"?

the numbers of people caught by it reflect primarily those who aren't capable of making and doing something bigger and more value-creating for themselves and others around them.

You mean slightly different circumstances would see most people primarily in poverty be not caught in it, and people not caught in it caught in it? I think LW has some unusual beliefs about the relative unimportance of character traits in decision making.