As always, it's a matter of balancing risks. Most disasters last a week or so, most power outages last a day or so. Within 2 weeks things are usually at a stable point, so a month's worth of resources should allow you to ride out the problems in a sense of style. Now if disruptions are for a year or so then yeah you need to start banding together with your neighbors/state/country and deal with things and having a month's worth of resources gives you the time to set that shit up.

Having enough land to produce food, having all the tools to produce food, the fertilizer on hand to produce it long term, seeds, plants that make seeds, and so forth can get very expensive to maintain. That's money that you can't use to buy bitcoin, invest in the future, and so forth. If the apocalypse doesn't happen you will be further behind other people, and if it does you may be ahead of other people but you will still be living in a serious crap-sack universe.

Preventing that crap-sack universe by having a reasonable government, getting involved with your community, and contributing to a better tomorrow despite the fact that some (many, most) people are fuck-heads could be a better investment over becoming the king of MREs.

So, there you go. You place your bets and take your chances with life. In business many people have placed all their bets on stuff coming from cheap china. This probably paid off well when times were good, but when bad things happen the question is did they save enough money to cover a service disruption? If so they have a crappy year. If not they go out of business. Jury is still out if China is dead for a week (on hand supplies used), a month (reserves), a year (suppliers) or a decade (you're fucked if you depended on them). We shall see.