IMO these people are shooting themselves in the foot long term. If companies learn to WFH full time these people will eventually be replaced with cheaper labour from oversees.
I mean yes, you absolutely can hire much cheaper devs, sure, but I've witnessed the fallout from them not being good at their jobs which then mandated bringing me and several other senior devs onboard so we can fix the mess and get the project back on track.
So can companies utilize the global market and hire cheaper devs? Yes. Is that usually risky? Also yes.
(Exceptions exist of course, e.g. Eastern European devs are usually high quality and are happy with 2X, if not even 3X-4X, less payment than the American ones.)
And yet, all the developers I know actually managed to stay employed/get jobs/etc.
The world is full of doom-sayers...and someday they'll be right. I just don't think thats day is today :-)