In fact, in was the opposite.
So what are you even talking about?
Dude is saying nonsense. "Emacs users are unemployable" sounds like "Tesla drivers unregisterable" - what an imbecilic, utter bullshit that has zero sense to say. Ever.
Regardless, I don't think anyone is going to, say, avoid a specific doctor because said doctor is fond of Emacs. Same for a plumber, a baker, an electrician, a lawyer, et cetera. As a matter of fact, I have a hard time thinking of any profession where a fondness for Emacs may be considered a bad thing. Perhaps a software developer may have a harder time finding gainful employment if potential employers find out about the preference for Emacs, though that would likely only be an issue among a limited and specific set of potential employers.