You mean by using something like Mono -aot, CoreRT, IL2CPP?
> Do we really need to start digging down into how fundamentally terrible nuget is as a package manager,
No, because in spite its issues, it still runs circles around the half-baked solutions that Go devs are still trying to fix.
Nuget is such a pile of rubbish it's not even worth arguing about; if that's the best package manager you've ever used, you should really go check https://github.com/fsprojects/Paket out.
(they also helpfully articulate why nuget isn't really very good)
The irony is that the folk from go-world have finally acknowledged the package management solution they have is really terrible, and they're building a lovely new one (https://github.com/golang/dep).
Maybe sometime in the future you'll be eating your words, when go has a lovely package manager.
...and c# still has nuget.
:)