Brown ran on two things...stopping Obamacare and stopping radical Islam.
Those two things should be enough to satisfy any conservative. If not, no one will be good enough.
Brown voted for an individual mandate, and taxpayer-funded abortion, when he voted for RomneyCare. He also said that everybody should have healthcare, it's just a matter of how to get there. So, as a conservative, I have an issue with a politician who supports individual mandates regarding healthcare, and who votes to make taxpayers pay for abortions.
I love his views on national security, but I'm not at all convinced that he has stopped whatever “ObamaCare” ends up being. In other words, your post is not grounded in reality.