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So what is the trolley problem? People who are starving don't buy meat.

If there is a supply glut of a staple food, the prices of food in general, even not of that type tends to driven downward - because to some extent foods are interchangeable. Similar to how an overabundance of residential skyscrapers has a downward effect on the price of less attractive homes. There's a lot of history on food shortages and prices that can be found with a cursory level of searching. Each person can only eat so much in a day.

https://en.wikipedia.org/wiki/Supply_and_demand

Thanks for linking me to an article about Supply and Demand. I hadn't thought about that. You are still wrong.

The problem is that factory farmed animals usually eat grain which could be used to feed humans. Even if only 10% of their feed is suitable for human consumption, it's still a net loss of food, because meat is an extremely inefficient source of calories.

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