If people can quit smoking, I think you can quit the chips... Maybe we should make eating chips in public illegal and force anyone who eats them into the cold during the winter. Also, bump up their health insurance rates and add a 50% tax onto each bag. We need to build a social stigma against eating fatty foods and being fat so that everyone stares at "these people" like they are the devil.
It worked with cigarettes, it can work with "bad food" too.
Oddly enough we are headed in another direction on this subject in particular and I can't figure out why.