The question is not whether governments will allow a $X bitcoin economy, the question is whether Bitcoin will allow oversized governments to exist and retain the kind of power they currently do.
Excellent point.
You are absolutely right my friend.
Yes, excellent. Neither Gold nor Gold 2.0 will disappear as long as the civilization doesn't. It is the state that always disappeared, together with its debt. The history of the state is the history of failed states. If Bitcoin will destroy all states (and it has the potential to do it) Bitcoin and Gold will be obsolete, as it has been in pre-state epoches of humankind. Humans beyond the state live(ed) in self-sufficient communities without Gold, without money, without a market.