So you wouldn't support Romney against Obama. So when Santorum might agree with you, it causes you not to want to vote for him.
There is something wrong with the Santorum haters on this site.
My anti-Romney stance is pretty well known here on FR, with literally 1,000’s of posts to back me up. And being from MA, I've seen Romney up close. All that being said, what Santorum said was both incorrect and disqualifies him from POTUS contention, IMO.
As far as supporting any Republican in November goes, I will not vote for Romney or Santorum, period. Obama will win this state going away.