He's not saying that variations of "a marketplace that connects farmers to people who want farm fresh food" doesn't exist. He's saying that this mythical utopia where everybody ate locally-produced, high-quality, healthy food didn't exist.

I don't know, I wouldn't say the downsides of the old ways were that the food was non-local, low quality, or unhealthy. A lot of the food regulations were necessary because when you try to do things on a large scale you run into quality and health problems. The downsides are more like people ate way less meat because it was too expensive, there was much less international variety, and there were a lot more farmers, like 25x more. It's really hard to be a farmer. That said, I think the typical person nowadays can afford to eat much better than your typical peasant in the past, at a lower total percentage of income. It's just that because there's so much to spend money on in life now, today's typical peasant chooses not to eat better and ends up romanticizing the past.

The main point you're missing is that people were tied to local produce. Cold snap during summer? Potato blight? Sorry, you're going to starve. Even when the harvest came through, staying healthy through the winter and spring was a major problem, with all sorts of vitamin deficiency diseases like scurvy, beriberi, pellagra and rickets endemic.

There's definitely more food now. Most of it is lower quality than what was eaten before, when it was eaten of course. For survival reasons, I would choose availability over quality any day. However, we have more than enough food to survive, so much so that we throw it away. So maybe quality could go up a bit. Like say by banning the use of antibiotics and growth hormones in milk producing cows.

Antibiotics are banned in dairy cows (at least, in the US and EU). They can be used to treat illness, but the milk produced while they are used must be discarded.

Growth hormones are banned in the EU, not in the US, but many US dairy producers advertise the fact that they produce milk without using them.

Sorry, I thought there were antibiotics in US milk.