I'm not lecturing them for leaving. I'm lecturing them for complaining about things that it WAS IN THEIR CONTROL TO ADDRESS. More than that - it was their actual JOB to ensure.
I chose to "disagree and commit" to "The Law of Two Feet" and left. One L8 claimed he would be blacklist me and my direct reports (who also left) from ever returning. He got a harassment claim later and I asked in return for my input that HR investigate that claim. Nope, not blacklisted, he was just a lying PoS.