People who get to attached to fast food and have a bad health because of that, they have psychological problems that let them develop the dependence with the food. So, if a man have weight problems, heart problems and diabetes because of fast food, his problem is not the main fast food per se, are the psychological problems he have and he focus on food. So tell me, it's wrong to help someone who have psychological problems or habit problems?
In the case of drugs the dependence can be psychological or biological. Some medicament that doctors gave have biological dependence, also cocaine, cigarettes and coffee can produce biological dependence. As you can see, can we not gave help to people that their problem is coffee or some medicament? And also cocaine? Cocaine is illegal and it will never be legal, so if you get in to it, you obviously did against the law, but can you left that person with his addiction and blind your self about him? At the end if you left the addicted alone, he will keep his behavior of addiction.
In the case of drugs with psychological dependence, the case is equal at the one for fast food, his dependence was triggered because other problems. So how can you left people alone and not help them?
I dunno, when people say "taxes are going to hobos, drug addicts and whores" they are being extremely retarded, and they almost want their taxes to be for them and no one more. As I see, taxes are to keep moving the state, to help others and to help the infrastructure of the public buildings (if education is public, payed by taxes, then it also help education). Also when people point countries as Sweden where people pay 60% of their money in taxes, and claim that is awful, think it again, because with those taxes they are paying education, health, public services and also keep the state on movement.