First of all, try taking a minute and checking definitions before making such claims, easy enough to do with a simple internet search. Blood libel is not limited to attacks against Jews, although the term is often associated with anti-semetic attacks.
And second, the term blood libel is not anti-semetic, it is a description of anti-semetic attacks. In your zeal to bash Palin, you reversed meaning. Hardly a suprise, it happens all the time with Palin-bashing idiots.
Nonsense. Blood Libel has always been directed at Jews. Spin all you like, it won’t change anything.