This is for good reason though. You want to overproduce significantly in ordinary times so that if there is a big negative shock you will still be able to produce enough to feed everyone merely by not destroying the excess anymore.
There is no reason to obliterate food, you should give it away to those in need.
But in a pure market that would mean that during overproduction times, prices should be low. Which they artificially aren't through industry price fixing.