Your personal egoistic opinion is a mental disease programmed onto you. You can liberate yourself from all hatred by letting go of personal egoistic opinions. Egoism creates hate and is totally useless.
Do you have any advice on how someone can practice to letting go of egoistic opinions?
Experience kills opinions. Visit a shaman/druid. People are missing certain experiences/information the human was used to get for thousands of years from druids and shamans.