Hallucinations Disproved?

For those skeptics who have merely tried to explain NDE's are hallucinations.........would this not apply to those who use drugs as they too experience hallucinations like the skeptical psychologist Dr Susan Blackmore who herself reported leaving her body when using drugs some time back? However, there is one great difference between the drug user and the clinically dead person.......the clarity/vividness of such an experience, the life changing events in which people have had a new focus of what to do with their life, such details recorded during the experience, and not forgeting one of the most important areas experience such as overwhelinig loving emotions and what they have seen. If such an experience really WAS drug induced, would not all drug users, or many of them have found a way of boosting their life through these experiences? These are merely ideas which I chewed over a bit.