Search "John Mackey" CEO of Whole Foods, and read his WSJ Editorial. Most organic food enthusiasts and vegetarians I know are conservatives or libertarians, but then again I don't know too many liberals. (Mackey is a libertarian vegetarian, which has a nice ring to it!)
The thing everyone should most despise about liberals and liberalism is that they take a good idea and twist it around so much that the rest of us have to oppose it in order to preserve our freedom.
Eating organic is a great idea. Eating more local (your backyard) is even better.
Being “encouraged” to do so by a government using our tax dollars to “encourage” that behavior is a despicable thing.