The main problem with humanity is unawareness. The lack of knowing allows a lot of unfortunate things to happen or be supported. The only difference between someone who does something negative vs someone who does not is an awareness that is something they do not want to do, something that should not be done. The ego has an immune system of sorts that protects it, sometimes in ways more similar to an autoimmune disease. That is, in protecting the ego more harm comes to the mind and society (collection of minds).
The worst thing that can be done to the darkness of ignorance is to transform it into the light of awareness. The worst thing that can be done towards anything negative is to transform it into its opposite when possible.
These days I'm rarely angry about things, more so disappointed or sad.