Given the numbers, as a hiring manager, I will never ever suggest to any company to try to use Haskell or hire Haskell devs. I know many developers who use it though. They sucessful with what they are doing, turning business problems into Haskell problems and solving those. Sometimes patch the compiler, sometimes write a completely new one. As a tech leader I do not want to have these problems, even if I could hire enough people for projects (which I can't). I always like to read blogs about what is going on though. It satisfies my scientific curiosity but that is it.
Those are numbers. I'm not sure what they say, ultimately. If we believe them, then we can conclude: there are substantially more Java programmers, but substantially more unfilled Java positions, but a much bigger (... infinite) ratio of Haskell job to Haskell programmer, etc, etc. I'm not sure which of those wind up being most important.
I can say what I've said - that my experience of trying to hire the next couple Haskell programmers has not been harder than my experience of trying to hire the next couple JavaScript programmers.
There's also a big question of the quality of the survey, and how representative it's likely to be of your company's overall hiring pool - you say you have many Haskell programmers in your network, and your network is probably substantially fewer than 90k individuals, so something seems amiss.
I'm not interested in getting drawn into the rest of your ranting.
Java: 41.1% 36990 developers
JavaScript: 67.8% 61020 developers
Haskell: 0% 0 developers
Jobs:
Java: 73,447 jobs
JavaScript: 59,647 jobs
Haskell: 492 jobs
https://www.indeed.com
Given the numbers, as a hiring manager, I will never ever suggest to any company to try to use Haskell or hire Haskell devs. I know many developers who use it though. They sucessful with what they are doing, turning business problems into Haskell problems and solving those. Sometimes patch the compiler, sometimes write a completely new one. As a tech leader I do not want to have these problems, even if I could hire enough people for projects (which I can't). I always like to read blogs about what is going on though. It satisfies my scientific curiosity but that is it.