Fiat can be minted easily. Bitcoin cannot any faster than the rate that it is mined. Massive difference. And the key reason why the dollar continually depreciates.
Fiat means faith and that's all you have with bitcoin, faith in the algorithms that make the ledger very hard to mutate without spending the required "effort" to "mint" the entries on the ledger. You can believe whatever you want but as I said previously you're better off convincing people to sell you services for your bitcoins instead of arguing with random strangers on the internet about cryptographic hashing functions.
Wait, are you saying dollars are good because you can wipe with them? I think you're in full agreement with the person you're replying to!