I don't think its really possible to hate a certain group of people. All that leads to is prejudice and ignorance. Within a group there are tons of individuals who vary in tons of ways. So to say you hate everyone within that group is idiotic.
You need to develop some sort of relationship with someone before you can decide whether or not you hate them.
As for me I can say there are definitely people whom I dislike, but I really haven't met anyone who has gotten to the hate level yet. A couple people are close, but nobodies achieved hatred yet.