....Errr no. The exchange rate of BTC isn't based on just supply. This article provides a rather good and simple explanation: https://www.buybitcoinworldwide.com/kb/what-determines-bitcoins-price/

Through a number of cases the Supreme Court has created a framework for speech and expression that is NOT protected under the first amendment. This includes actions that deter from a legitimate government function that isn't directly related to the speech. This includes, burning a draft card (war effort) or burning money (regulating commerce), but not burning the flag.

I don't really think anybody could convince me beyond a reasonable doubt that they were Satoshi.

My 'fun' theory is that Satoshi is Hal Finney, or he was part of the group that is Satoshi, and he is dead.

Government can't ban Bitcoin, that's the whole point.

I'm not fully sure how to interpret your question, but Bitcoin can disappear in a sense. If a wallet is lost, the Bitcoin is essentially lost. It will no longer be part of the active bitcoin economy as it is impossible to use.

Yes- it was totally my fault. My hard disk drive died and I had no wallet backup. It was only about $15 USD at the time. Overall, a valuable lesson.