You obviously haven't looked into the tranasaction economics of the Lightning Network. And things will only be mentally priced in USD until we switch to something else - quite possibly Bitcoin.
I have, and as I have said to others the lightning network is not some magic that makes distributed PoW efficient, it just lets you conduct a bunch if transactions off chain and then record the end result. You could do that with fiat currency as well. BTC does one thing: lets users transact without possibility of double spending, without trusting any other users. Lightning network removes that last part, so you are just back to VISA/PayPal/Banks etc etc.