Guns do not have addictive properties. Nobody's ever picked up a gun and become physically addicted.
Addiction is either physical or psychological, meaning that you either have a physical dependence or a psychological dependence. Drugs that are physically addictive would be nicotine and heroine. Beer is not a drug of physical dependence; it is one of psychological dependence. Does this mean it should be banned? Well, many people with overeating habits have a psychological dependence on food. This doesn't mean we should ban food.
Unfortunately, anything can be psychologically addictive; it depends upon the person's mental state, genetics, upbringing, etc. Thus, there isn't a legitimate reason for banning a substance simply because some people have psychological addictions to it.
Casinos: Gambling can be (allegedly) a physical addiction. I don't necessarily buy that, but this is the only thing on your list which has even a scintilla of merit. I guess that's why there's such a huge debate over having them in this state.
It's a psychological addiction. Gambling does not put anything foreign into your body which your body then physically requires to continue to function. Receptors in your brain do not become accustomed to a foreign substance and require that the substance continue to be administered. There is a difference between psychological and physical addictions. Both can result in physical symptoms, but the underlying cause of the two addictions are distinctly different.