To each his own. Just because someone doesn't believe in guns or defending their own property doesn't mean it isn't prudent to have a small emergency stash of food.

But also, just because some people don't believe in guns, doesn't mean we should avoid mentioning it. Defense is still an important part of preparation, and guns are the best tools to accomplish that. If someone wants to reject that form of defense on philosophical grounds, they're welcome to, but it's still worth mentioning them as resources for people who may not have such fixed philosophies.

That's true. I'm only addressing the proposed scenario - projected 90% die-off following a total collapse of modern civilization. At this point you'll have to deal with large amount of desperate, starving people radiating away from cities and towards any and all known farms, warehouses, and food/water sources. But having a food stash is a really good idea anyway, because if a disruption is only temporary (say, a week or a month), it may be a difference between living and dying (or not wanting to live with yourself anymore).