Correct me if I'm wrong, but they didn't say they wanted less state. Just for the state to do less bad things/things that hinder its citizens. That doesn't mean they must oppose school lunches, unless they also believe that school lunches fit into that category. You can argue whether or not they do, but 'you don't want the government to hinder us, but X is the government hindering us, therefore you must oppose X' isn't much of an argument on its own.

Apologies if I misunderstood your comment tho.