The US GDP is about $15 trillion, so about $1.25 trillion in transactions happen in a month. If you take M2 of about $10 trillion as the US money supply, about 12.5% of the US money supply turns over each month and 87.5% is being hoarded. If you take M1 of about $2 trillion as the money supply, about 62.5% of the US money supply is used in a transaction each month, with only 37.5% being hoarded.

Compared to 62.5% or even 12.5%, 0.2% seems pretty unhealthy.

It's entirely possible that 99% of the value of a bitcoin is a self-reinforcing set of asset-bubble expectations, but this is something that really didn't exist before, that we don't have great paradigms to explain, that is undergoing massive daily shifts in its usage. It is explicitly not a stable national floating fiat currency with people who circulate the money their banking system provides & pay their taxes in those notes & denominate their salaries and grocery bills in sticky quantities of those notes, and so it's not directly comparable.

I don't have to. The fact is, no one prices their goods in BTC. Its absolutely ludicrous to price goods in BTC in the current market.

I think BTC has utility as a currency for exchange however. But on that side, you don't want to be in the position of hoarding BTC. You hoard dollars, and then use BTC to transfer dollars between people. Services like Bitpay allow you to keep most of your money in hard cash.