I think, perhaps, that we are talking at cross purposes somewhat. In no way whatsoever do I intend to "shrug it off". The impact of dealing with the incidents you describe is, of course, horrible. I hope you're managing and I wish you well.
My point, as you'll see from the longer post I made at almost the same time as you (and so which you will not have read before posting your own thoughts, I am sure) is one concerning responsibility for what is happening, and preventing it. Of course, serious incidents whether they are fatalities, illness, terrorism, or something entirely different impact on all of those who experience them, in whatever capacity. However, in the case of these trespassers, it is they themselves who are making a deliberate decision, risking their lives, and the lives and wellbeing of others. Only they can solve the problem that's happening here, by not trespassing. It's their problem to solve, and nobody else's, is my point.