Republicans aren't conservative by default. In fact they are often times worse than the alternative.
Rolling Stone Article
https://www.rollingstone.com/politics/politics-news/mitt-romneys-biggest-flip-flops-202776/
Romney Flops on U.S. Outsourcing
https://www.motherjones.com/politics/2012/07/bain-capital-mitt-romney-outsourcing-china-global-tech/