I've been trying to figure out why philosophies like that tend to profuse in the left more than the right, actually.

I don't know what to say about "left" and "right" here -- I don't find those terms descriptive enough to be useful for analysis; they are more useful for branding -- but it seems almost definitionally true that the sorts of people who find a mode of thought that emphasizes deconstructing conventional beliefs appealing are more likely to identify as political or social progressives than as conservatives.