I totally agree. I think a graduate education (whether liberal arts or hard science–I have both) will be more of an indicator than a split. You don’t find folks in the life sciences that will accept intelligent design.
The split actually might be between (a) business and (b) liberals arts and the sciences with regard to social conservatism. You don’t have to deal with “nasty” science classes that might contend with your view of how the world came about or with “evil” philosophy classes that challenge you to think about your place in the world.