This is how it worked out for the French.
https://www.zerohedge.com/political/when-paris-went-hungry-under-government-food-controls
Now DJT is doing the same thing, initially with beef. 25% off, by removing tariffs on imported beef. The country’s herd is at its lowest level in 70 years and the POTUS’ answer is to lower prices to incentivise ranchers to increase production.