To reiterate, how could enlightened (individual) self-interest of consumers ever possibly be construed as an assault on liberty (or whatever-the-hell)?
edit: Pretty sure not eating McDonald's every day is not an affront to capitalism. To assume that critics of McDonald's food are automatically calling for regulation/whatever, instead of just trying to educate people to help them act in their self-interest, is a caricature. Similarly, suggesting any critic of Google is automatically some sort of proto-communist is a ridiculous caricature.