I don't see the argument. Bad effect from things that are relatively non-addictive (at least physically) suggest that things that are addictive needs to be even

I don't see the argument. Bad effect from things that are relatively non-addictive (at least physically) suggest that things that are addictive needs to be even more controlled. If anything there is now a disparity between what science tells us about "junk food" and digital media, and what how we treat them. The idea that you can teach people faster than dangers can appear without boundaries doesn't seem to be supported these days.