All you say is true, but PA people don't like Santorum and will vote him out. No amount of truth telling at this late date will change their minds.
Maybe "Patsy trolls" like you don't like him, but you don't speak for the rest of us. Go knash your teeth somewhere else, and let real men like Toomey stand up for him and publicly endorse him. True conservatives know what is at stake, and whether you want to fantasize about it or not, they aren't going to cut off their noses to spite their face in a mid-term as important as this one.