No, it is the same arguement you are putting out. Worst yet you’re putting all of your wealth on mainly one thing. Wars historically was fought over useable resources, precious metals/gems were nothing more than acting currency. Currency that devalues if people decides it’s more important to hold land for food or useable metal that can be made into things.
BTW, since you’re physically storing value, where is it? So I can physically rob you with tanks and guns. And attack during transfer periods, ie when you walk out the door. Whereas paper value, I can easily spread my risk over various companies.