Commodities are hedges against inflation. This is why they tend to go up as fiat currency goes down in value-- or as both drop in value commodities maintain their intrinsic value ( > 0.000) as fiat currencies reach theirs (which is 0.000...)

Cryptocurrency is still currency, just as much as fiat money is currency. Perhaps someday cryptocurrency can buck the trend, but it is still closely tied to the value of USD and other fiat currencies.