1. no
2. the quote from the OP is attributed to Gloria Alred not Hillary Clinton
Sorry for confusing the two.
I think people who hate feminists probably wouldn't be voting for her anyway; and it might help her given the recent resurgence of feminism (on tumblr, yes, but it's beginning to seep into mainstream discourse too).
The problem with Clinton being a feminist is that it reinforces the image of her being a "rich elitist liberal", which would hurt her everywhere except the coasts. You're forgetting how much of politics is likability and perception rather than the reality of the situation. If the right candidate comes along who is likeable then the tables could be turned back to Bush-Kerry when people voted for him because he was "the guy ya could have a beer with". People might just perceive her as someone who caters to the radical feminists even if Clinton is smart in responding to these attacks because of their own insecureties. Of course the Republicans will probably just nominate a nutjob like Cruz or spew nonsense about birth-control and nothing I just said will matter.
If my party nominates Cruz I will not be voting Republican and will hold my nose, probably shed a few tears, and vote Hilary.