>skyrocketed in the span of 75 years are immutable facts of life

A number of them seem to have skyrocketed with quality of life and personal wealth. I suspect my ancestors were skinny not because they were educated on eating well but because they lacked the same access to food we have in modern society, especially super caloric ones. I don't super want to go back to an ice cream scarce world. Things like meat consumption are linked to colon cancer and most folk are unwilling to give that up or practice meat-light diets. People generally like smoking! Education campaigns got that down briefly but it was generally not because people didn't want to smoke, it's because they didn't want cancer. Vaping is clearly popular nowadays. Alcohol, too! The WHO says there is no safe amount of alcohol consumption and attributes lots of cancer to even light drinking. I suspect people would enjoy being able to regularly have a glass of wine or beer and not have it cost them their life.