"But he saw the light and realized Greenpeace had turned into nothing but a bunch of politicized people haters, and now preaches sustainable development."
In fairness, I would credit Greenpeace for at least making people aware of the importance of the environment. I too once belonged to Greenpeace. The problem was, they were too off the wall, even sleazy.
Greenpeace represented to me the inherent problem with liberalism: some of their ideas are valid, but only within the proper context. Otherwise, it is distorted thinking.