GOP Senate Candidate: In a "legitimate rape," the "female body" will "shut that whole thing down"

For more on the latest in the Republican war on women (and general insanity, cluelessness, viciousness, etc.), see here. The question is, why would any woman, or any man who finds these types of beliefs (and remarks) repulsive, vote Republican? Remember, here in Virginia, we have a U.S. Senate candidate named George Allen, who goes around telling Asian Americans "welcome to America," who supports a "personhood amendment" which would outlaw most forms of contraception, and is generally a right-wing nutjob on every other issue. Again, why would any woman, or any man who finds Allen's attitudes repulsive, vote for him? I'm stumped.