Thanks for the summary. Unless I am missing something, this seems like a pointless argument that the scheme community has. Why not just create a library separate from the standard and call it a day?
Thanks for giving some context on the matter. If the base language is not capable to provide a way to implement those, then that makes sense. I do like the idea of having the base being small but still capable to allow for these features to be implemented in a library. From the link you gave, it does seem that these would require more support than what is available in a smaller language.
Take a look at the list of proposed features and try to decide if you can clearly bucket them as language or library: https://srfi.schemers.org/