I don’t disagree with you but to many here on FR “conservatism” is defined (exclusively to some) by social conservatism and specifically abortion issues.
To many Christie bashers here, he's "not a social conservative" exclusively because his record on guns (which isn't even a social issue!) and immigration is not perfect. The fact he's solid on the other 80% of social issues is ignored by them, they continually assert he is a "RINO"
If we analyzed politicians solely based on their positions on guns and immigration, Howard Dean could be considered a "social conservative"