I agree with your statement only to a certain extent: there are only so many AR-15s, ammo for the AR-15s, c-rations, etc. that one person or family is able to store, use, and guard.
Gold, however, is one way to pack a large amount of value into a very small space. This makes is easy to conceal, easy to transport, and easy to smuggle.
Yes, cover the basics first. Then decide how best to invest the rest.
Gold is not much of an investment; it is an insurance policy against inflation but fall short of other investments in that regard (https://www.investopedia.com/articles/investing/092514/better-inflation-hedge-gold-or-treasuries.asp#:~:text=Gold%20is%20often%20hailed%20as,provide%20inflation%20protection%20built%2Din.). Gold is not easy to transport or smuggle, and it is ripe for confiscation once uncovered. Crypto currencies do not have the same problem as gold, but have other problems. There is no certain way to lay up and preserve earthly treasures.