Ron Paul is in fact much more socially authoritarian/conservative than what is popularly assumed.
Social conservatism and social authoritarianism are not the same thing just as social liberalism and social libertarianism aren't. Ron Paul is socially conservative, but socially libertarian.
An area I can think of where someone could claim he is "authoritarian" is pro-life issues, which itself is a debatable issue since the "libertarian" position could be either side depending on when one considers person-hood to begin.
It just happens that most social conservatives are generally authoritarian and thus give a bad name to social conservative ideology which is basically just morality and a strong respect for culture and traditions. Of course most establishment social liberals are also social authoritarian, like Obama. The base may not be as much so though. But it is a bad thing to assume social conservative = authoritarian and social liberal = libertarian.
I'm socially libertarian, yet socially conservative. One has to do with how you believe and live, the other has to do whether you force that belief on others. Just like one could support economic equality, yet oppose economic authoritarianism.
Although his position on immigration, is indeed, not really libertarian. But he is still the most libertarian person in congress, on both social and economic issues.
