First: gee, I wonder how the Swiss do it.
To your points:
>OK great, what do you want to cut?
The answer is largely dependent on the country you're talking about.
But the generic answer: cut waste. That includes inefficiencies, duplication of effort, crazy useless shit the government wastes money on (see the unreal crap DOGE unearthed in the US for example), downright corruption. And when that's all said and done, cut every department budget equally by 50% the first year.
When you deal with a parasite like most governments are on the planet, less food means a way more efficient and smaller parasite.
> Education ...
Your not getting my point. This is not about picking winners and losers in the belly of the beast. This is about reducing drastically the size of government overall. Period.
Now if you want to pick apart winners and losers, sure, let's do this ...
In in ideal world, a government should stick to regal functions: externals security (army), internal security (police), justice (enforcement of laws, property and contracts). End of story.
If you believe that including things like health, education and welfare in the R&R of govt is a good idea (I don't, it creates monopolies, which are inherently corrupt inefficient), fine.
In that case, make sure they're properly starved (small budgets) so they operate at maximum efficiency, decentralized so even if they're taxpayer funded there's at least a modicum of competition to keep them meritocratic, honest and efficient.
> Education is generally net positive as you need future taxpayers to pay for your pension
In countries where retirement management was designed like a ponzi scheme (new investors buy in so early investors can benefit), and where the age pyramid looks like a freaking Christmas tree, you would unfortunately be correct. In a properly designed retirement system, this is utter BS.
Retirement system should only be minimally mutualized. In an honest retirement system, you should mostly rely on what you have set aside during your work life, 401k style. And certainly not pray that there will be, 50 years down the road enough of the same suckers you are now to pay for your sustenance. When people stop making babies, guess who's going to be left holding the bag? You. That's who.
> Is there waste? Yeah, of course, but it tends to be much lower than in the private sector.
I'd love to see the data backing this claim.
But if we're talking impressions, my observation after a rather long life is the exact opposite: the private sector is far, far more efficient than governments except when corporations get to monopoly status and essentially become mini-governments (via crony capitalism) and with the exact same illnesses.