The more interesting question for me is why we still don't have a widely adopted approach to sharing libraries across languages.
The most promising approach I have seen in recent decades was Microsoft's COM. But it has declined along with Microsoft's clout.
Unfortunately, current industry leaders don't seem to be interested in this problem at all.
We have C, lots of languages use C libraries. Pick a random language and it probably has OpenSSL bindings.
Furthermore, C libraries don't even have to be written in C. It's far from unheard-of to use a more powerful language like a lisp or Ocaml to write a C library.
For platform libraries we do; it's called FFI. Your language can use openssl or libxml or whatever, so can mine. It is more general than COM; COM is a specific ABI (that we can target with FFI).
Language-specific libraries are tied to language semantics, because language-specific objects pass across language-specific calling boundaries. We don't think about using Python dictionaries from Guile Scheme and such.