My mum and sister lived in extreme poverty when my mum was married to her first husband (DV issues). They had nothing, no heating, hot water or food. After my mum left and met my dad she has always stockpiled food and my sister has done the same, way before all this. It's a response to extreme poverty, neither one of them has run out of anything or needed to buy anything other than fresh food, so why has Jack needed to use substitutes, surely she would naturally be a stockpiler, too. You would never need to substitute sugar for honey if you have 3 bags of sugar, like my mum does, etc...
I've never been keen on Jack and I'm a proper lefty, always thought it was me being cynical but I always felt she was courting attention with the non-binary thing, being vegan, leaving the Labour Party and showing her hands on food pics really irritated me, I thought I was being petty. Glad I found this thread.