It's puzzling.
How can people on the "left" be so concerned about the Patriot Act and it's infringement on personal liberties and then shrug off an affront to private property?
I think our whole social/economic system owes its success to the individual acquisition and development of real estate. If we need addition wilderness areas beyond existing refuges, parks and National forests then let the public acquire the lands the old fashioned way, purchase them. The type of restrictions they are imposing in an effort to restrict growth will have the same effect as rent control.