Left-wing. There is no such thing as a conservative theory. There are conservative writers, sure, but conservatism is not a theory at all. It is more a set of principles, a view of life, of humanity. I think an essential of conservatism is a Christian perspective, a belief that there is both good and evil in the world and that it will always be such. There is no utopianism in conservatism and all theories tend to be utopian to some extent.