I have always been told never to hate anyone; we can "dislike" them or think some of the things they do are wrong. Honestly I do not "hate" most people, but I think a person can have a few exceptions for those individuals who have shown them or the world nothing but evil towards others. Some appear to be out to get others and do not think of anyone except themselves. Making the lives of others miserable is their driving force in life and they thrive on the misery of others. Creating drama and making others upset gives them a reason for waking up in the morning and makes them feel better about themselves. So sad, but true that people like this exist. While I believe that most are not worth hating, these few individuals are worthy of being "hated".
I adore you all and I hope you keep these types of individuals out of your life as much as possible. They are truly toxic!