Also they love to act as though fiat isn’t backed by anything despite the fact that fiat is actually backed by something extremely important: you are required by law to use fiat for interactions with some of the most powerful organizations in the world. I can’t pay taxes in crypto or gold or even rubles, my government accepts usd and if I don’t hand them usd every year I get in trouble. When they pay me for any reason it’s in usd. When they fine me it’s in usd. That is a backing. So long as I have to financially deal with the governments of the United States I have to have appropriate quantities of usd. And because of all of this everything around me accepts that currency, even drug dealers take cash. Why? Because it’s the local currency. And it’s reasonably stable.
And on that note, I’d never spend a wildly inflationary currency. It’s not an effective currency and because of that it winds up being entirely theoretical.