This post seems ridiculous to me. If you would like to know why your employees are unhappy then why would you ask random strangers on the internet why they are leaving your company? If your (or anyone’s) workplace culture discourages employees to air grievances then you aren’t entitled to know why they would like to switch companies. Most likely, I think that young people don’t wish to be percieved or talked about as whiny (or any other words you can use), in the event that they raise issues which management or colleagues view as unimportant or inconsequential for the company. I’m also curious as to how you know that your Millennial team members are happy, as opposed to working just because they need the money and don’t see better opportunities elsewhere.
As a Scottish person, I've been tripped up by the slur filter only twice. Once was when I used the c word to describe Dominic Raab (I still stand by that), and the other was when I used twit by with an A instead of an I. I genuinely had no idea that it actually meant vagina! I've heard it since I was a child and had no idea what it actually meant.
Still, you can't really complain about it, it's more of a trivial thing to people who aren't being offensive.