Ok, but do you really think you’d have a hard time finding work with your xx years of experience, regardless of what language you have been most recently working in?

As in, reductio ad absurdum, “if only I had been working in Java, I’d be safe, but because I worked in Ruby, I am going have to go flip burgers, as no one will let me near their precious production code now?”

I mean, yeah, ok, there was the dotcom bust, and I suppose another could happen at any point, but somehow I get the impression that you’re arguing that using any language except the most mainstream option (whatever that might be for a given industry) is too risky? Or am I misreading?

Well, I wouldn’t have a hard time finding a job in my current speciality cloud architect/cloud dev because of where I work and what I do. No one would ignore my resume.

But in the boring enterprise dev world where I came from especially during the latter part where I was specifically being hired to lead initiatives, of course they wanted someone with relevant experience.

Yes they are.