>. The second allows domestic producers to increase prices
Nevermind then, that domestic producers haven't raised prices, in fact they are working on utterly razor thin margins - at least that's what they claim whenever anybody suggests they should pay their workers enough money to eat properly.
The prices have gone up in stores, but they haven't gone up at the farm gate though, this much is pretty easy to verify. 
So the stores may be benefiting from the ability to raise the price on domestic goods due to imported goods being made more expensive by the weakened rand -but those are the very same people you just denied are profiteering.