So what exactly makes these unhealthy? I consistently get voted down whenever I question this, but just because it's "ultraprocessed" doesn't make it unhealthy.
Sigh. You get voted down because you generalise the point in a way that makes the question unanswerable. There is a proven link between health outcomes and ultra processed foods, but the specifics of it is difficult to establish.
In this case, we blame the food--it must be poisoned by big corporations!--instead of blaming the person making bad lifestyle choices.
"Choices" I don't think you understand what that word means in this context. For "choices" to be a relevant defense here those choices need to be free from undue influence. They are not in this industry. It's an industry that goes out of its way to not only stack the deck against you, but to also get you addicted. There's a reason when you fill up the car and go to pay you don't get greeted with a bunch of apples and bananas, instead you'll see a bag of crisps advertising how "healthy" they are because they are air fried, while being loaded to the brim with salt because research shows people love salt and any artificial chemical you can find to make them crunchier and last longer in the packet. There's a reason when you go to the fridge the water bottles are at the bottom and you're greeted with rows of Coca-Cola instead. Oh but you have a choice, make the healthy choice and reach for the apple juice, ... the one that had artificial sweetener added to the same amount as the coke because sugar is addictive and sells.
The consumer (yes even you, despite you probably not admitting it) has far less choice than you think. And that is born in the countless studies that have shown banning adverts or changing product displays has an impact on consumer behaviour and the "choices" they make.
I'm not sure what the goal is here* but what result do they expect?
Really I agree with you here. The city here is stupid. If you want to regulate / ban then regulate / ban. But regulating and permitting something then suing the companies that follow those regulations seems like a waste of the courts time.