Which governments? Libra doesn’t benefit any government.
While Libra is a “real” cryptocurrency (distributed, any user can exchange, etc) as opposed to schemes like Beenz, it’s closer to company scrip than to Bitcoin’s model of “digital gold”.
Also - despite all the white-papers and hired evangelists - Facebook would still de-facto control Libra: not directly, of course - but they’d control the specification and the reference implementation - which means they’d control the consensus system that underpins distributed cryptocurrencies - so if they want to switch to adopting a proof-of-stake system (i.e. good for whales and hoarders) or intentionally introducing a backdoor’d cryptography scheme - or even adding address blacklisting.
That last part is probably the most important: I imagine most governments (especially western ones) really want address blacklisting: it provides a Libra with an equivalent of today’s bank account seizures - and it’s easy to ask for: you don’t want to be seen allowing terrorists, money-launderers and CP porn sellers to keep hold of their money.
Finally, Facebook does not have a substantial corporate presence in every country - which means that governments without the ability to sue or prosecute FB for malfeasance probably /don’t/ want to endorse anything FB does.
You need another human to make use of any kind of money. This human will be subject to some governments regulations, so it's entirely possible to implement some form of address blacklisting (in the form of some "due diligence" requirement when receiving money) without a technical solution. No cryptocurrency can escape government control.
The best outcome here is that Libra doesn't launch at all in any capacity.
That’s an extreme and reductionist position - and I feel it’s an incorrect position.
The state does not have a monopoly on violence - certainly not in practice, and in most democracies today the state is expressly forbidden from using any kind of physical force (domestically, at least) excepting emergencies (e.g. police shootouts). Corporations /can/ be just as bad: look at brutal Fortune 500-sponsored union-suppression in South America happening today, for example.
Expect for very few exceptions like defending your home , self defence etc, you are even not allowed even show force let alone act violently.
State does not need to use violence in stable democracies they just have make sure ppl know they can to get everyone in line.
Also violence is not always physical. Threatening incarceration/ social humiliation / jail time for parole violations/ job loss and other economic harm etc is common tactic law enforcement employ to get cooperation. Finally the state also offers the candy of lower jail time reduced charges and assorted other incentives for cooperation all of it beneficial because of the harm associated with the alternatives.
I don't find the phrase all that compelling. What is legal in a given place is based upon the strongest coalition of people that cares about that place. When speaking at this level of social organization its basically might makes right. A state with no police and no military has a monopoly on nothing.
You can have your Jennifer Government, I'll keep the real thing.