Not translating entire articles to a language you don't support has the easy remedy of letting people select the text and use third party tools to support their specific use-cases. But not including translations for your clickable content for languages that aren't supported are the literal practical limits of ability. I would rather my apps work for people in languages I do support, with full accessibility (and minimal scripting overhead), than to have them work poorly for keyboard-only users in all languages, regardless of my app's support for them.

Again, we're talking about the stuff that should be iconic. Things that can literally be represented by icons. Buttons and tab headings. Things that you shouldn't actually need translated AT ALL, much less into every single language there is.