1. You haven't worked in government. Their code is worse than Yahoo! or virtually any startup. Bitcoin isn't.
2. Bitcoin is far from the most malevolent possible form for governments. Chaumian blinded money, what I want to build next, with open, non monopolistic exchanges, and protocols designed to be hidden, instant, etc., is the most powerful possible form of anonymous cash.
3. No clue, but probably not, since the concept of a reserve currency is irrelevant. With electronic exchanges, you can separate out the different roles of money.
4. A subset of 3.