Nothing that any human touches is "trustless" - even Bitcoin requires trust. In fact, you need people top buy into it in order for it to gain acceptance.
Gold has been trusted for 12500 years at the very least.
Also, last I checked the Whitepaper and the current state of BTC is far from 'trustless' - remind me again how many times they've changed the protocol and created Bitcoin forks?
Can't do that with Gold.
Also, "trust me bro" applies to a growing group of BRICS nations, Indonesia most recently joining - so within that circle of trust, sure they trust each other. Do they trust the West? No. Do they trust the dollar? No.
So, you can keep your bitcoins and your guns and they'll keep their gold and their guns.