1. Agriculture is not a machine like consistent harvest giver, especially with more climate change (that’ll happen regardless of emission slowdown), it is good to have produce enough to feed 5.8(=6 million approx), a bad harvest can bring that 15 million down to 7 million very fast.

2. All produce is not of same quality, 15 million people’s produce will probably only produce 11-12 million produce that is marketable in stores after transporting it

3. Economies of scale matters, going from 15 million people’s produce to a 10 or 8 million produce doesnt just means a linear cost reduction, the price per unit for crops also rises, which can potentially make it hard to compete with other agro hubs in the Eurozone, dwindling Denmark’s independent source of food supply over time.