The truth isn't a platform, and facts don't care about popularity.
They're going to get more expensive with or without regulations, because food sources are running out. Without regulations, prices will rise slowly at first, then skyrocket as billions starve. With regulations they'll go up sharply at first, then level off to far less than the unregulated skyrocket, and we can manage the inevitable population decline humanely through birth control.
Yes, some economic planning is necessary.