It’s a very minor point but this article makes it sound like the generic term for a union buster is Pinkerton agent. Pinkerton is a private company who does security work these days, but has a long history of doing exactly this. Fascinating Wikipedia read if you’re curious.
(A quick search shows Lauren Gurley is a prolific writer on labor issues but doesn't mention any connection to the earlier Gurley - the names might be just a coincidence)
Indeed, everything old is new again. You know the saying, right? History doesn't repeat, but it sure does rhyme. This is often attributed to Mark Twain, but there's no real evidence he actually said it.
In this case, I think quoting the introduction to the The Eighteenth Brumaire of Louis Bonaparte by Marx is more apt: Hegel says somewhere that great historic facts and personages recur twice. He forgot to add: "Once as tragedy, and again as farce."
https://en.wikipedia.org/wiki/Pinkerton_(detective_agency)