The fundies are desperate to stop Romney.
This is another example of how far outside of the mainstream these dinosaurs are. The social conservatives' candidate, Santorum, not only bitterly opposes any legal recognition of gay people, he also wants to make birth control illegal for straight people. That will go over well with voters -- Washington politicians taking away people's freedom over their most personal life choices for their families. (Whatever happened to that whole "smaller government" idea we've heard so much about?)
In addition to backing the wrong candidate, the fundies have made this decision about three months too late. Maybe they don't read newspapers because they hate "the liberal media," but Romney already has it locked up.
Sorry hate-mongers, you lose. Again.