I can confidently say that I would not want to live in this man's world. Making things illegal because they are harmful? Ridiculous on its face.
Of course, the other possible conclusion from positing that drugs == fast food is that drugs should be legal.
yes, All drugs (with the possible exception of Antibiotics) should be legal.
Fast Food is physically addictive. That is the difference between other behaviors and Fast Food. I think it should at least come with warning labels (don't eat more than once a month/year).
What else is harmful? (Not accepting the premise that fast food is 'bad' by the way...)
Sitting on a chair for hours.
Should office work be made illegal?
Ah, too many things are illegal as it is. Instead let's tax calorie dense foods and use that money to subsidize healthy stuff so at least parents can afford to feed their kids real food if they want to.