Lemme help you out, no one outside of a few cranks believes such ridiculous hyperbole. Any legimite criticism gets washed away with such over the top statements, because people will simply tune you out as a crank with no credibility. If too many of his critics discredit themselves and their message by acting like the stereotypes of 'rabid right-wing partisans' who will say anything to discredit those they disagree with, then pretty soon those criticisms lose their effect, despite their validity. This likely will produce a degree of the 'Teflon Effect' with Giuliani (much as it did with Clinton), increasing the likelihood of his election.
Giuliani has no chance at all of winning the GOP nomination or Presidency. Who will vote for Giuliani in the primary and in the general election?