The history of gold, and other metals like silver or copper, is quite interesting. They started by having an intrinsic value, then some governments tried diluting it, failed and they went back to intrinsic, then finally the Venetians managed to apply inflation to it, ultimately the gold standard was abandoned by the US in the 1970s... and anyone trying to reinstate it (Saddam, Gaddafi) got on the wrong side of US's army.

Crypto has no value

It has the value of whatever people assign to it. You definitely can find places to buy groceries with it, or anything else; there are even credit cards in crypto that will convert to whatever the seller wants.

you can’t fractional reserve crypto unless you’re using a second crypto currency backed by a first

Or an ETF. There are plenty of banks offering to "sell you crypto"... except you can't transfer that "crypto" out of the bank. There is no way to know whether they even have any of it.