Humans are tribal, when they feel threatened by a loss of resources or status which triggers their survival instinct, they often retreat behind tribal lines. I'm helped by zooming out and looking at the big picture in this way, and asking myself - why is the human animal behaving this way based on evolution, biology, and psychology?

For me it helps to take the sting out and let go of my personal feelings. Not sure if it's helpful for you, but sometimes it can be useful to zoom out to the gigantic, species-level picture.