I got 20%, but on some points even having seen the 'contradiction' pointed out I maintain both points and deny that a contradiction exists, for example
One could very easily point out how heavy drug users negatively effect unrelated people, not only by citing things such as erratic behavior causing, at times causing violent, criminal behavior of the user, but also the added drain on society. As their physical addiction can take over their life, lowering competency in the work place that then needs to be picked up by other workers, treatment for such drugs also tends to take up resources that could otherwise be allocated to other people. It is true that all drugs can not be treated the same, but the general comment "should illicit drugs be decriminalized?" is question directed at all currently illegal drugs, and it is simply unreasonable to decriminalize all drugs.You agreed that:
So long as they do not harm others, individuals should be free to pursue their own ends
But disagreed that:
The possession of drugs for personal use should be decriminalised
In order not to be in contradiction here, you must be able to make a convincing case that the personal use of drugs harms people other than the drug user. More than this - you must also show that prohibited drug use harms others more than other legal activities such as smoking, drinking and driving cars, unless you want to argue that these should also be made criminal offences. As alcohol, tobacco and car accidents are among the leading killers in western society, this case may be hard to make. You also have to make the case for each drug you think should not be decriminalised. The set of drugs which are currently illegal is not a natural one, so there is no reason to treat all currently illegal drugs the same.