An interesting analysis of why libertarians and conservatives have such a hard time playing well together includes this summation of South Carolina Republicans and their obsession with regulating women's reproductive systems:The problem isn’t that conservatives are failing to live up to their principles. Instead, the problem is that limited government never has been a social conservative principle. The more influential social conservatives become within the movement, the more obvious this is. As Lindsey put it, ‘The old formulation defined conservatism as the desire to protect traditional values from the intrusion of big government; the new one seeks to promote traditional values through the intrusion of big government.’
As far back as 1959, Friedrich Hayek warned that conservatives could not be trusted to defend liberty. In his essay ‘Why I Am Not a Conservative,’ he suggested that ‘the conservative does not object to coercion or arbitrary power so long as it is used for what he regards as the right purposes.’ He argued that conservatives lacked any principles which would allow them to work with people whose moral values were different to their own.