James Nicoll asks this almost rhetorical question in a forum, with a bevy of replies, some from people familiar with the Prometheus Awards, some from individuals hostile to libertarian ideas. Nicoll, no friend of libertarians, closes with this question:

I understand why SF is increasingly not an American genre but Libertarian SF seems ideally suited to the US. Why, then, is the Prometheus Award going to people who aren’t libertarians (left or right) and not American?

The debate makes interesting reading. There are many points I could try to rebut, such as the statement that the Prometheus Award is marginal (why, then, do winners of this award seek to state “Winner of the Prometheus Award” on their novels, or other writers when writing about winners often mention how many Prometheus Awards that writer has won? Among other points, of course.)