Totally agree that hating someone you don't personally know or really, in truth, know anything about other than what is portrayed in the media, is absurd. I also agree that it's not a great idea to hate anyone, but when it comes to putting your focus on strangers who have no actual impact on your life in any manner whatsoever, it's just plain silly and more than a bit petty.
For those who don't like her, don't watch her show, don't waste time talking about her. Go make your life about something else. Letting her (or anyone) live rent free in your head like that isn't harming her at all - but it is harming you to focus any energy whatsoever on hating on strangers. Get a life!