Both your examples are pre Haber-Bosch. Not that it entirely invalidates your point, but daily calorie consumption for a Westerner is orders of magnitude cheaper than it was for a Victorian coal miner. In fact what we generally struggle with nowadays in rich countries is an overabundance of (poor quality) food.
It’s not out of the question for poor people to lack calories in rich countries, but that’s a monumental policy failure. And critically it happens to socioeconomic classes that have neither the time nor the land area to dedicate to things like doomsday prepping (i.e. poor and marginalized communities in urban areas). The only solution to food insecurity is social programs, not doomsday prepping or grain hoarding.

















Oh boohoo. Chocolate will be more expensive for westerners. Cry me a river.
What the discussion was centered on is famine. Actual famine. Which will only affect poor countries and will kill millions. Whether or not individual Canadians stockpile grains in their basement (OP’s actual suggestion) has literally no bearing on anyone’s food security.
I’m sorry but I just can’t equate the economic struggle of a few more percent of inflation for mostly middle-class westerners with that of Global South subsistence farmers who are actually going to have to find out how far they can stretch out a grain silo or a fertilizer bag.