Addressing feelings of like or dislike for individual participants

I sometimes do not have the energy to try to understand people who inflict or advocate injustice against others and I get angry with them, I feel irritated. As a trainer, I do not have to understand everyone and everything, but I should at least try to understand where the behaviour that annoys me so much comes from. If I cannot understand, I can at least ask myself how I would like being in their place. When it comes to liking, disliking and partiality, I must try to be fair towards everyone and not allow myself privilege some and discriminate against others. The simple fact that I wouldn’t mind going for coffee with one person, while I quickly run out of conversation topics with another, is quite understandable.