I agree with you that the choice of language should not be based solely on the language itself, but also on the ecosystem it provides for the task you need to complete.
I was just pointing out that your critique was about the included batteries, not the language. Every language has some bad libraries in its ecosystem.
The point I was trying to make was that C# has nothing but bad libraries in it's ecosystem. I've worked with quite a lot of languages and I've never experienced anything like it. Well, obviously Node has an "interesting" environment, but the flip-side is that it's very easy to work with what isn't there. C#'s libraries are like half-charged batteries that you won't realize are only half-charged until it's too late.
I was just pointing out that your critique was about the included batteries, not the language. Every language has some bad libraries in its ecosystem.