Of course there's also eating of bad, expensive food. But being pressed for time is a real thing for some people. And IMO more importantly, if we enjoy the fruits of economics of scale for sooo many production processes, why can't we with mass produced food?

Nobody says "if you want a really good office chair you have to build it yourself". Same for shoes, cars, bikes, a million things. You can do that, make your own bike for example, but to get up to par you need to spend vastly more time and money, it's basically using more resources to be quirky or make an experiment etc.

IMO the default expectation, demand, the thing we should organise to achieve, should be that what's available, what the market competes over, is good and gets better, regardless of the market. Not that it gets worse because the buyers get fleeced. Doubly so not food.

Because there are multiple competing axis for "good" as relates to food. There's tasty, and theres healthy, and there's inexpensive (time or money); pick two.