I can't speak for the other organizations but as far as The Planetary Society goes, Huang errs in claiming that we are pro-science at the expense of human exploration and in his implication that we believe it's a zero-sum game. Clearly it is not. I'll point you to an Op-Ed that board member Jim Bell wrote for Scientific American, in which he concludes:
QUOTE
Robotic craft have worked well for the first age of space exploration, when simply flying a probe past a planet or landing on an alien terrain was enough to make dramatic discoveries. That era, however, is coming to an end. Now we are entering a new age of space exploration in which we must look more carefully at such planetary landscapes, as well as at what lies underneath them, analyzing the rocks, soils and gases of distant worlds in greater detail to flesh out the history of our solar system. This kind of science absolutely requires human explorers. In this new era, we will need brave people with brains to boldly go where no robot can take us.
And Lou Friedman is frequently on record as saying that we support the Vision for Space Exploration -- we just do not support how the vision is being gutted of science in its implementation.
--Emily