> Eating a varied healthy diet is a lot more expensive than eating a varied unhealthy diet (if you can eat kale, rice, and beans all day then good for you but most can't)

Eating healthy is not more expensive. Potatoes, rice, beans, carrots, etc. are all inexpensive. I was in the store today, and a can of Nalley chili with meat and beans is $2.19. It's more than enough for a meal.

I also buy whatever's on sale, including the day older steak which is around half off. A half gallon of milk is $1.99.