For me you are 100% correct. In either vim or emacs I am at least 10 times more productive than I would ever be in VSCode. No comparison.
> Not to mention that VSCode has countless other productivity boosters built in which would require plugin hunting or fiddling with configuration files for Vim and Emacs.
First, there are distributions of both vim and emacs that come bundled with sets of plugins, if that is the sort of thing you like.
Second, some people enjoy customizing their editor to work exactly the way they want to. You obviously prefer the "set up out of the box" experience, and that is totally fine. Others boost their productivity by customizing their tools. Different people work differently.
Everyone else is not like you. That doesn't make their preferences invalid.
I have known many developers over the years who use both editors, and are extremely productive using their tool of choice. I am certain many of them would not be more productive using VSCode - it simply does not offer them anything significant enough to them to make that big of a difference.