Why?

Why are some libertarians so overzealous in their defence of the fast food industry? I understand their love of personal responsibility, but let it go! It’s interesting — at either end of the political spectrum exists a land of moral fuzziness. Here’s a libertarian saying that everything is good, even if it makes you fat and causes you to die young. You have a right to do that! This is America, after all. Libertarians are afraid of passing judgement, lest that be construed as pining for government action. The only judge in their world is the market — if the market allows for it, then it must be ok.