I haven't seen any such analysis for the Sad Puppies supporters, but I did see recently where someone had done a survey of the political views of the pro-GamerGate crowd. The results defy the usual framing; about half identified as some form of political left, and the other half was roughly split between moderate and right.

http://gamepolitics.com/2014/12/29/editorial-gamergate-political-attitudes-part-1-movement-right-wing