Eh, I don't think it's here to stay. The political correctness pendulum swings back and forth every 10-20 years it seems to me, the last time it was on the watch-what-you-say spectrum felt like the mid-90s.
That said, this feels way, way more extreme than it was then. I'm maybe less worried that it's here to stay than I am worried that the swings are getting more and more extreme