From what I've seen, that's the position of a lot of Republicans. They like him on the domestic stuff, they hate him and thinks he's insane on foreign policy.
Yeah that's the weirdest thing. My dad probably agrees with Ron Paul more than any of the other candidates, but he won't support Paul because of what he said about 9-11. He supports NATO as well and believes in staying in Iraq, though he was against the war before it happened. However, I think he may have wavered a little on Iraq.
I think part of it may be the whole "he'll never win" thing too. Every time I get him cornered on an issue he goes back to saying Ron Paul won't win or just repeating what he first said. He does this on 9-11 when I try to explain how our foreign policy not only made al-Qaeda powerful it also pretty much made al-Qaeda period.
Foreign policy is the one thing it seems Republicans have a problem with. On everything else he's the best for them.