If you just meant apple-targeting developers, then yeah; you're right that those languages are in decline. But if you meant developers in general, I think you'd be surprised how many growth sectors are hiring C programmers. They're often not SaaS tech companies, but they are massive and many are growing. Hardware, industrial control systems, defense/aerospace ... there's a ton there, the spaces in which they hire just don't overlap a ton with the spaces frequented by hacker news. Also, a lot of them aren't US based companies.

I hope that changes over time, since I definitely agree that the downsides of C-family languages massively outweigh the downsides of competitor languages.