For it to be consistently available in national grocery chains, it would probably have to be industrialized like the current meat industry. That puts a lot of limits on how it could work. For starters, there are a lot of species of animal that people will hunt for food that aren’t economical with industrial farming/ranching methods. Their meat is expensive, available minimally in the supply chain and relegated to specialty shops.

So now, we’re in a position in which there’s a globally massive demand and supply for the meat, just to have commonly at grocery stores. That implies the meat is mostly farm-raised. We’re probably looking at a population of around 100 million. Using other aspects of the meat industry as a model, the meat is probably mostly juvenile, female and without a lot of genetic diversity. This analogy is getting uglier by the second, and I don’t want to flesh it out any further.

All the other alternatives would make for more expensive, lower quality meat, which consumers don’t like. Thankfully, human burgers are probably not on the menu for the foreseeable future, and if they were, it would likely be a short, self-limiting horror show.