Take it from a public services front line worker you see horrific things humour gets you through its called dark humour. My grandfather was wounded in the somme one of the gallant 80 of the Worcester who returned. He always said if you lose your humour what have you left. Work with some thoroughly great ex servicemen from recent campaigns they are the same.
My wife's friend is curre toy working as a paramedic in Donetsk for a charity he's trapped but again has his same warped humour.
Nobody owns the way they talk and act about pretty horrific incidents. I responded to the paddington train crash, 2 provisional IRA bombings.
I guess you have a better insight than me, however if you are interested I can 'Educate' you on a couple of good researched theories that explain how I particular certain people deal with what they see and hear of which is stressful.
I was told nobody is perfect, I was told the last perfect person was nailed to a cross. Sorry if you are offended, I have the highest respect for the Ukrainian people who stand and fight alone with no support.
Feel free to message me or tell me of your experiences. As I say nobody is perfect but I think most people if not all on here are rooting for Democracy our freedoms and freespeech!