Well, we do have some programming tasks that are almost exclusively performed through bindings on different platforms (cryptography, graphics/GUIs, scientific c

Well, we do have some programming tasks that are almost exclusively performed through bindings on different platforms (cryptography, graphics/GUIs, scientific computing to some extent), but the hassle of maintaining bindings is enough that the “need barrier” is high: a given library has to be doing really important stuff that is also really hard to reimplement to end up in the set of tools that are almost always used via interop/bindings. This indicates a deeper problem hidden in your question: for a bunch of reasons (technical, personal, OSS-community-political), maintaining multi-platform bindings is a hassle. Things like Truffle/Graal aim to solve that by providing a common binding “middle” layer in various platforms’ runtimes. Things like libffi offer ways to make ad hoc binding easier. It’s a complicated problem.