I think of it as: in 50 years it will be obvious to everyone that these things fall in the category of "health problems", because they are, similar to junk food

I think of it as: in 50 years it will be obvious to everyone that these things fall in the category of "health problems", because they are, similar to junk food, and we'll have a way of societally regulating the danger that is aligned with our ethics. But we're presently in the middle of the long transition in which not everyone has figured that out yet, and in which we don't have a widely-agreed-upon moral stance on the subject that reconciles the need to do something about it with our existing value systems. We're going to have to find it one way or the other, so the question is "when", not "if". No doubt in 2174 we will have a bunch of new issues that are at different places in the pipeline. We'll probably be debating the ethics of mind-control implants or something. But in the meantime this one will solved.