I'm not sure what you're comparing here. Are you saying governments are more efficient because they are bigger? Are you saying they are more efficient because they've filled a need more completely?
The first is non-sense and the second is more a function of size and power than efficiency. Efficiency is about benefit per dollar, and governments are really really bad a that, typically making up for how bad they are by simply throwing more dollars at the problem.
That is, I can be 100% efficient with my donation to charity by just...giving $20 to a homeless person. Oh look, 100% of my donation went to someone in need. A charity can be 90% efficient by collecting and distributing donations citywide; it's more widespread, and donations are less centralized, but there's cost in paying people to actually do the legwork. A government is doing stuff nationwide, distributing unequally based on need (measured in a flawed way, yes, but still requiring measurement, since it's politically untenable to do simple things), and is less efficient still. But that's...to be expected.
You see the same thing in private sector; the larger a company is, the less efficiently it runs. Walmart is the largest private employer; no one is claiming it's a well oiled machine of efficiencies comparable to a lean startup. Necessarily; it's just like with technology, the more distributed the system is, the less efficient it is. Saying that governments are inefficient and just throw money at the problem is like saying distributed systems are inefficient and just throw compute at the problem. While true, it nevertheless is still the only way to solve many problems at that scale, and comparing the 'inefficiencies' of hardware of, say, Google, to the hardware for local search on my home PC, isn't particularly meaningful rhetoric.
Unlike the government, no one's forcing people to shop at walmart, and if they were loosing efficiency (charging higher due to Admin costs) people are more than welcome to move to any alternative that suits them best
All of this after leading with seeming disagreement. I'm a little lost.
Maybe I should clarify, especially if English isn't your first language, saying something "isn't comparable" doesn't mean you literally can't compare them, but that doing so is unhelpful and misleading.
This is definitely not an ideological and dogmatic statement obscuring centuries of experience across hundreds of government systems, oh no-no-no. Government is bad at everything, get it?
> There are no examples in the history of the world of charity sufficiently providing for the needs of the poor at a national scale.
This is just false. Literally right now we have the case where food banks are filling in the gaps of the UK government at a national scale.