The answer to "what is hate?" can only be found within and may be different for each person. I do not say this to avoid answering in a more concrete way. I just think that each person has to determine that for themselves. My idea of hate is something that eats away at your humanity and eventually your soul. It makes you forget how beautiful and diverse everything on this planet really is. It makes you forget that you have a power inside you to transcend the pettiness and hatred. You just have to go within and find it.
I am not talking about peace and love, ignore the ugly, bad stuff. That would just be foolish to pretend it doesn't exist. Acceptance does not come easy to me. It takes works. It takes reflection. It takes being honest with myself. It takes admitting when I am wrong and adjusting my attitude. I look at my life and see plenty of reasons I could have kept hating. I do not because I have the power of choice in every moment to react or respond. I don't always choose wisely.
Hating something prevents me from seeing that each being that landed on this rock, by choice, or karma, has a path to follow that is different from mine. The least I can do is show more tolerance and patience for those who end up crossing my path, no matter how brief. I don't tend to cross paths with anyone I can't learn something from or who can't learn something from me. I have posted my homeless people experiences before. I learned a lot from random homeless people. The ones I have met are not hateful people. You would think they have every reason to be by their stories but they're not. I saw my own selfishness through my interactions with them and decided to do something about it. I hate when people say they hate homeless people, for example (of hating behavior). Unless they have been hurt by a homeless person what is the point of hating some random on the street that asks for a dollar. Give it to them or not but why the hate. Seems weird to me but whatever.
Anyway, most people are just doing the best they can with the level of awareness and the tools they have. Of course there are exceptions to the rules. People with strong awareness do not always choose to do what they personally believe is the best thing for themselves or others. I am guilty as well. I have nothing to complain about in my life when I think about how much worse it could have been. I really wonder sometimes how I have escaped some really dangerous situations relatively unharmed and not be a complete hateful wreck of a human being. I am not struggling for survival. I have everything I need and most of what I want. Being hateful at this point in my life would would show a lack of gratitude for what I do have. I love my family and friends and they love me. That is what I care about. I really don't feel I have the right to judge another considering I have done some pretty fucked up things, in this life and in others. I don't care about others enough to hate them. I don't mean that in a bad way. Like hating an actor makes no sense to me. They 0 impact on my life. I am sure this might surprise some people, I don't hate Trump either. I feel he will have 0 impact on my lifestyle but I do see the pain and fear others have regarding him and I empathize. You got me rambling. It seems to be a morning thing for me to do now. I am not even fully awake yet.
I think you bring up a good question though. What is hate for you, specifically?