[hombre_fatal]

Client development was never trivial. Your old iOS/Android skills also expire due to SDK changes. Apple recently switched out the entire language you're using.

I don't think SQL is a great example either. Your next company could be using any database where you aren't even writing SQL. And you're expected to know more than standard SQL to, say, use Postgres. Your rant here to me is like getting mad that "just SQL" isn't enough because you constantly have to learn more at your next job that uses Postgres, DynamoDB, etc or that "just <language>" isn't enough because your next job uses a different framework than you're used to. I don't think your rant is consistent, so it just comes off as confused anger towards JS client development.

Maybe you don't have the stomach for client development where code must run on a machine you don't control? That isn't a disparaging remark either, it's very reasonable to prefer the cozier environment of writing code for machines you do control (like application servers).