Fear, anxiety, desperation, helplessness. Guilt.
And ultimately it all boils down to a quiet numbness. Not comfortably numb, to coin a song. But vapidly numb. Unable to process any constructive fix for our kids that doesn't sound utterly silly.
organizations attempting to implement solutions or achieve progress on this issue are portrayed as irrational and occasionally prosecuted as domestic terrorists, so it makes sense that anyone might feel numb and stupid when thinking about the available options.
Read through, say, an official air crash report or industrial accident investigation, and slowly realise that what you're reading is an account of how some dozens of souls ended their existence. Often with a chain of events such that once the process had begun, the fate was inevitable, though it might have played out over many minutes or hours, possibly even longer.
In some ways it's an ultimate example of "show, don't tell".
You're not coining a new phrase with that, you're just referencing an existing song. Coining would mean you created the song yourself. https://www.merriam-webster.com/dictionary/coin