You need to respect the fact that everyone has their certain "litmus test" issues. For instance, would you vote for a man who held your positions on domestic issues, but was very soft on the war on terror?
If the alternative was someone even softer on the war on terror, and who opposed my domestic agenda, yeah. It's called "half a loaf."
I did the stupid-a$$ protest vote thing in 1992. Yeah, I helped elect Bill Clinton by not voting for George H.W. Bush. We all know how well that worked.