If you still don't believe that, if you believe that you can't vote for anyone who espouses tax policies that it comforts you to call socialism, well, you can't use that belief to choose McCain-Palin over Obama-Biden. McCain and Palin both believe in taxing the rich and redistributing wealth, just like those other guys.
Hendrik Hertzberg highlights the sheer nuttiness of the McCain-Palin adoption of "Socialism!" as the last-gasp battle cry of the 2008 campaign by pointing to the words and deeds of McCain and Palin themselves:
During the 2000 campaign, on MSNBC’s “Hardball,” a young woman asked [McCain] why her father, a doctor, should be “penalized” by being “in a huge tax bracket.” McCain replied that “wealthy people can afford more” and that “the very wealthy, because they can afford tax lawyers and all kinds of loopholes, really don’t pay nearly as much as you think they do.” The exchange continued:
YOUNG WOMAN: Are we getting closer and closer to, like, socialism and stuff?. . .
MCCAIN: Here’s what I really believe: That when you reach a certain level of comfort, there’s nothing wrong with paying somewhat more.
And as for Palin...
Instead, it imposes huge levies on the oil companies that lease its oil fields. The proceeds finance the government’s activities and enable it to issue a four-figure annual check to every man, woman, and child in the state. One of the reasons Palin has been a popular governor is that she added an extra twelve hundred dollars to this year’s check, bringing the per-person total to $3,269. A few weeks before she was nominated for Vice-President, she told a visiting journalist—Philip Gourevitch, of this magazine—that “we’re set up, unlike other states in the union, where it’s collectively Alaskans own the resources. So we share in the wealth when the development of these resources occurs” [emphasis mine; Hendrik Hertzberg, "Like, Socialism," The New Yorker, 2008.11.03].
As I've said before, a voting issue is "a fact, policy, or moral position (or a set of several such things) that distinguishes one candidate or position from another and thus can justify, singly or in concert with other issues, voting for one candidate or position over the other." Sharing the wealth is simply not a voting issue. At every turn—experience; guns; impressive oratory; palling around with bad dudes, whacky pastors, and folks who hate America; and now socialism—McCain and Palin have negated even the silliest arguments they could make against Obama and Biden by their own beliefs and policies. There is no honest reason left in the GOP rhetorical ammo bag to vote for McCain-Palin over Obama-Biden.