His past addiction was painkillers, not Propofol or even sleep medication. Propofol addiction is when you inject yourself over 100+ times to get that good feeling from waking up. Since Michael did not use Propofol in that way, he was not addicted to it. He also had no painkillers in his system so pass addiction is moot. And the high doses you mention was give by his doctor, not Michael himself. You don't get high off of Propofol by taken heavier dosages like other drugs.
And no, it is not self-destruction. How is it self-destruction when you doctor is the one to OD you? Also, he hardly got all the drugs he wanted since he only wanted to sleep. He wanted someone to help him take the drug and watch him, and just give him the drug and leave like most addicts. He also refuse to pay Murray's original asking price, so he was not that desperate and he was looking for another doctor who was train to give Propofol to help him. This is not the pattern of someone who would self-destruction themselves. Especially when they feel safe in the care of a doctor, who is suppose to make sure everything goes okay. An addict would not care either way if they are safe or not since they only want the high by any means.
Please, you are the one who needs to 'man up'. Janet shows you does not know everything, it does not matter if they are family. Like I said before, if he had such a big problem as you are implying, why didn't they try to take his kids until he got help? She brought the interventions herself, so she should had explain it more. If she didn't want to explain it, she should not had said anything. You cannot say someone was an addict and then just leave it at that, it does not work that way. Michael blocked his family because most of them frankly are a pain in the ass and deserve to be block.
You also fail to address the healthy organs, heart, and why didn't they hold an intervention the month before he died to 'save' him? Also, why was his death such a shock? Why is their such chaos over Michael's death if they knew he was an addict, but that can't seem to decide if an intervention was held at all? By Janet's statement, none of that makes any sense since she said the entire family was involve.
Sorry, Michael was no addict. He had a sleeping problem which he tried to ease by taken Propofol to ease it. He trusted a doctor to keep him safe and to watch him and he failed. You may not want to admit it, but those are the facts.