I think consumer pressure might possibly help a little.
There are for eg loads of resources for a nestle boycott.
The guy defending the food industry on that show was so smug about how he would keep prioritising profit until the government told him otherwise so maybe political pressure too.
I lived in Germany in the late 1990s and I think most households in my city were dual income.
People still ate way more fresh food than in a similar town in the UK.
In restaurants too.
Think salad-with-duck-breast as opposed to reheated pizza base with preserved ham product.
Some of this (feminism-wise) might be Liberal vs radical.
I am an old-fashioned radical feminist in a relationship with another old-fashioned radical feminist.
It is part of being a feminist, for us, to consider environmental impact and the ethics of food production and consumption. For eg we are both vegetarian and that's important to us for feminist reasons.
I chose to use cloth nappies and to breastfeed, as another eco example.
However, neither of us would give anyone hassle for doing things differently - just that we take a holistic view of feminist praxis.
For me (and for dp actually) our dads were the main household cook so maybe it's not such a loaded wirework thing.
Another angle might be the way that it's often men saying these things eg Jamie Oliver shaking up school dinners so that, for example, lots of children switch to packed lunches and there's more domestic work for women.
But I do think that ideally, people would be better off eating less highly processed food. It is a new thing and has been driven by industry. It's about making people crave certain products and then eating mindlessly.
It doesn't necessarily mean ending the purchase of all convenience foods.
I had a nosy at the aldi website and some pizzas have about 9 recognisable ingredients. Others have about 93 and don't seem as appetising.
Oddly the cheaper ones seemed OK.
So if people chose the simpler food that yielded the same convenience, the market might change.
Wow that was a multi-tangent ramble.