Indeed, I make a mistake in calling price control as taxation.
Regardless, in artificially keeping the price of bread low, the government disregards the economic fact of wheat becoming specially scarce since imports have plummeted and so has the internal production (in no small part because of the very drought you mentioned), but at the same time prevents bakers from increasing said price, essentialy driving the baker's revenue way down. In short, the government is forcing bakers to use almost all wheat of the lower amount of wheat they can acquire to make bread which they're forced to sell for low prices, essentialy driving the baker's revenue way down.
Basic bread is subject to the price controls. Brownies are not. So the guys want to make brownies because you can charge whatever you want for them. i.e. the bakers are arguing that they should be able to push prices of wheat-related good higher.
The bakers then opted to make brownies, which aren't a staple and thus have no government set price control, so they can actualy hope to have enough profit to buy things other than the wheat they use to make their own goods, like, say, feed and clothe their families. The fact two of them were arrested for using expired wheat only further confirms this fact, unless you're willing to believe the bakers are part of some evil cartel that wants to starve everyone so they can live in infinite luxury provided by the sale of a few dozen brownies.
Imagine that your boss tells you to work but forbids you from being paid more than a few cents for it.
Wait a minute.