The idea is that Giuliani is the only GOP candidate that can take down Her Thighness. If President Giuliani appoints judges in the mold of Roberts and Alito, I don't think his detractors have much of a complaint.
Winning takes more than issues-- one needs to have the personality, and one needs to be a good campaigner. If we lose, all of the stuff the single-issue voters fear, will happen, especially since the possibility of Hillary having a Democrat Congress during her eight-year term will be quite real.
I don't believe it for a minute.
In any event, I doubt that there's anyone on Giuliani's short list for SCOTUS who isn't on Hillary's list too.