From many of the comments in this thread, one might think that FAANG companies invented the concept of open source software or that software doesn't exist outside the context of a "profit model." Whatever is going on at Mozilla right now, the notion that a piece of open source software even needs to be profitable (let alone supported by a single large company) in order to continue existing is ridiculous. I'll concede…
Have you any examples of any large OSS projects that don't have this problem?
> As for Rust, maybe someone could point me in the direction of the one benevolent large company that's backing GCC/G++ or CPython or Ruby?
gcc [0] has a list of maintainers, which features a lot of redhat email addresses. The ruby maintainer is employed by Heroku. CPython is maintained by a RH employee. The linux kernel is mostly comprised of people paid to develop by their employers.
[0] https://github.com/gcc-mirror/gcc/blob/master/MAINTAINERS