This is the same Peter Thiel that was recently complaining about women being able to vote. http://gawker.com/5231390/facebook-backer-wishes-women-could...
The offending statement is: "Since 1920, the vast increase in welfare beneficiaries and the extension of the franchise to women — two constituencies that are notoriously tough for libertarians — have rendered the notion of “capitalist democracy” into an oxymoron." In essence, this appears to be the claim that women are by and large not libertarian voters, and less so than men. This is a mere statement about the world…
It's possible that he really thinks, instead: while those two things have rendered "capitalist democracy" an oxymoron, which I dislike, I nonetheless must agree that those two things happening was a good idea (for other reasons, presumably). But that certainly isn't the connotation of the words he chose. One could be forgiven for reading him to imply that he was at least not a big fan of either the expansion of welfare or the granting of women's suffrage.