Not necessarily black and white, sure, but there is a threshold defined as the net personal/social benefit of the thing. If this is net positive, there's not en

Not necessarily black and white, sure, but there is a threshold defined as the net personal/social benefit of the thing. If this is net positive, there's not enough reason to ban it. If there is net negative, there are reasons to ban it. Further, the ban/not ban dichotomy is also fuzzier in practice. We can restrict access according to attributes of people, or restrict consumption to private settings, or otherwise. These decisions must be informed by the net benefit.