Frankly, I'm surprised anyone would still make comments like yours after all these years. Comments like this probably peaked in 2008-2009 ("Rails can't scale" was even earlier) after the zed shaw article and there was a bunch of hype about everyone supposedly moving to Django and how Rails was supposedly dead, yet that didn't happen then, or any of the other times.

The reality is that lots of companies have been and continue to be created around Rails applications. An AngelList job search focused on server-side technologies currently returns 1267 startup results for "rails" while "node.js" returns 832, "node" returns 854, "django" 434, "python" 1461, "flask" 69, "go" 441, "php" 1192, and "Java" 3163.

JavaScript has become bigger, and it hasn't killed Rails on the server. Java remains huge, and it hasn't killed Rails. Python, Django, and Rails have roughly the same relationship as they did back in 2009.

A lot of very smart people who have extensive experience with many technologies choose Rails for new projects for very good reasons, this has been the case for the 10 years people like you have been making the same FUD-filled comments, and it will likely continue to the be the case for some time.