It's like saying alcohol prices would plummet during the prohibition
I see you make this argument about drugs and alcohol frequently, and I'm not sure that it is the best analogy. If someone cracks down on drugs or alcohol, that doesn't stop people from the psychological or physical need for the drug, and they will go out of there way to get their drug of choice. I don't see bitcoin as having the same advantage in that area. If the crackdown on bitcoin does turn out to be successful, there's no dependence. The big sell hits, and the majority of people move on with their life. It's not nearly as easy for someone addicted to heroin or meth to move on from those drugs.
If you can think of a solid example of something being prohibited that went up in value but also isn't addictive in any way, I would be a lot more convinced. Something like guns springs to mind, but even those would logically have to stay in demand simply because the people who need them most are probably the ones who don't care about breaking laws, as well as citizens concerned with protecting their own families who are likely to put their families before the law. Guns offer a level of physical security (arguments about whether it's real or perceived aside), bitcoin does not.
You might notice I cut out the other portions of your response, as I honestly don't feel knowledgeable enough to assess them. You could be right, you could be wrong, but on the specific "drugs and alcohol" argument, I would disagree.
FYI I am not trolling you, and in fact am genuinely interested in your response.
I like your comment, but I would argue that:
Bitcoin is DAMN ADDICTIVE!
![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
-- I'm going out and getting me some right now... I need a fresh hit!
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)