Flimsy anecdotal account. Funny that this person's Fiverr account has gigs like "I will develop a web app for you (starting at $20)", which for me epitomizes the "rush to the bottom" that the writer bemoans.
Picking a large but lower paid economy (India), and using https://tradingeconomics.com/india/wages as an arbitrary and hopefully valid data source, I get a bit over $US 28 per work day for high skilled employees. Lots of fuzz here (IT vs 'high skilled', work from home, own equipment & expenses, ultra short term contracts), but even then, where the 'bottom' is for these sorts of jobs is surprisingly low to many of us.…
I guess we will just need to admit to ourselves that remote work like software development, graphic design, translation, etc. has become an internationally-traded commodity, and that in order to compete we will need to physically move to cheaper places in order to survive.