windrim

It's an em dash not a hyphen, and has been used that way for a very long time

FWIW the underlying article[1] is written by Chris Rufo, a prominent right-winger[2]:

[1] https://www.city-journal.org/article/signals-katherine-maher...

[2] e.g. https://www.newyorker.com/news/annals-of-inquiry/how-a-conse...