This situation is very frustrating but, what people need to understand on situations like this is how you hold the title of the property is a big deal when situations like this arise.

You do NOT own the land unless you hold it through an allodial title. Fee simple, which is how nearly all land in this country is held, entitles you to ownership of EQUITY of the property, not the property or the land it's on. The government technically owns the land and, although they can't take it from without "just compensation" they are completely within their rights to force you out if the benefit to the public outweighs your inconvenience. That said, it can be stopped if enough people show up and demonstrate their needs/voices are louder than the potential development proposed to be put there. There is a lot of infrastructure in LA that was stopped (see I-710) by people protesting eminent domain but it took a while before people got loud enough to stop the land grabs.

It sucks, and I sure don't agree with it, but that's the way things are at the moment.