Can we fix hate?

There are many capabilities that we the people have in this world. We can love and get along with everyone, but we can also hate the people around us and do bad things. Some people have the ability to change but others are just plain stubborn and ignorant. Dictators and warlord are like that, there is nothing you can do with someone who is ignorant. It's basically arguing with a brick wall if you try to persuade the person to not hate. So I think that some people have the ability to change but at the same there are others who won't and just hate everything around them. So the answer is yes and no at the same time.