Not sure who "they" are, but I am guessing it is not that "they" don't want Sarah per se, it's about worrying about all the other people who don't seem to want her.
http://thehill.com/blogs/blog-briefing-room/news/80729-poll-71-say-palins-unqualified-to-be-president
If she can turn those numbers around, things will change.
That’s a fake, couch potato poll.