I actually have the completely reverse experience. I've been writing software for more than 15 years and C++ always got me a job.
When I was unemployed, I always had at least ten potential employers calling me for my C++ skills. And with C++, you can get a lot of various jobs like multimedia, systems programming, security, banks (even if you know nothing about it, they will teach you what you must know whether it's a big bank or a company doing embedded devices). My resume is rather generic and I don't have any specialization.
It's definitely not a useless skill. It seems to be a bit rare and I'm sure that's why I always had companies hiring me to write C++ code.
When I was unemployed, I always had at least ten potential employers calling me for my C++ skills. And with C++, you can get a lot of various jobs like multimedia, systems programming, security, banks (even if you know nothing about it, they will teach you what you must know whether it's a big bank or a company doing embedded devices). My resume is rather generic and I don't have any specialization.
It's definitely not a useless skill. It seems to be a bit rare and I'm sure that's why I always had companies hiring me to write C++ code.