Any R ticket is better than Obama. By not voting, or not supporting the R ticket if Romney is on it, is a defacto vote for Obama and all he stands for.
Not voting means full implementation of Obamacare, likely 8 to 10$/gallon gasoline prices, and tax increases like this country has never seen.
Those who would not vote for Romney, distasteful as that might be, are playing right into obama’s hands.