I don’t trust the polls, but at least they are some measure. Your belief that Newt is electable and Santorum is not is based on nothing more than a wish. Nothing in the primary has shown that Newt could win an election. He can’t beat two unelectable candidates. In some states, he can’t even beat Ron Paul.
Telling people to drop Santorum because he “can’t win”, with no evidence, so we should instead support Gingrich, who has proven he can’t win primaries, and for whom there has never been any evidence he could beat Obama, is an unsupportable argument.
Polls aren’t facts, but the facts aren’t good for Gingrich either. Of course, the fact is that Romney is going to win the nomination, and either Romney or Obama will be President next January. But I’ll suspend disbelief in a Santorum win until it is impossible, before I give into the reality. That point long passed for Gingrich (who is polling 3rd in North Carolina, and not polling first in any state remaining (he is 3rd in Texas as well).
All can see you make your decisions based on polling data, which is the same as saying you make your decisions based on what other people think. Or what you think they think.
That is your prerogative. It may even help ease the pain as you witness the country march along the pathway of historic inevitability.