Two observations - Haidt's theory has been totally debunked. I'm sorry I don't recall, but there is a brilliant sociologist at a university in Scotland who I contacted with many of my concerns about the poor reasoning underlying Haidt's theory (I am a doctoral level clinical psychologist who has conducted research and therefore has some personal acquaintance with the many limitations of psychological and social research). He agreed with all the points I raised about Haidt and added many more I hadn't thought of.

As I wrote to Daryl Talbot, there are left hemisphere types on BOTH sides of the political aisle. You're less likely to find right hemisphere types at higher levels of politics in the conservative realm, just because of the nature of conservatism and its emphasis on law and order, boundaries, etc, but you do find them in more traditionalist conservatives who have a deep respect for organic traditionalism, which tends to be more integrated (rather than purely right hemisphere or right mode).

I find it helpful to look at these modes within ourselves, and realize that everyone has both ways of responding. The political movements tend to change rather dramatically, making it impossible to pin down right mode or left mode and identify it with a particular party or political orientation.