At least in the U.S there are more Ruby jobs than PHP, so what you're saying isn't accurate. In Europe (outside UK) Ruby is weaker I agree; php/.net seem to be way more popular.
Hmm what do you base that on? I'm genuinely curious. Looking at Linkedin I see a lot of Ruby jobs in London, some in really top notch companies. To me London seems like a great place to be a Rubyist.
Just for comparison's sake this is from Linkedin (London Metrpoloitan):
Ruby: 1238
Node: 1940
PHP: 1332
Rust: 157
Python: 9208
Golang: 588 (might be called Go in many jobs though)
Conclusion: Ruby on par with php, less popular than Node but not by orders of magnitute, and used way less than Python. But comparing it to web development languages like PHP/Node, it's right there with them.
If anything Ruby is in bad form in mainland Europe (France, Germany, Netherlands) where for whatever reason PHP is king for startups.
Now for frameworks:
Rails: 480
Laravel: 41
Django: 535
Symfony: 164
Conclusion: Rails is really up there with any other major framework. Could be that some job posts don't mention the framework, but I'm going with the data we have.
Some famous Ruby shops I know are from London: Deliveroo, GoCardless, Funding Circle, Babylon Health. I honestly don't see how this is bad.
