I also don't agree with you that "tearing opiates out of their context in medical treatment" as you so negatively frame it is a bad thing either. Who are you to say that's the only legitimate context for them to be in? If people want to take smack or any other drug recreationally, then that should be up to them[1]. I trust you can see how I would look at this analogy relating to your view on porn.

I put in the line about law because it's a point I was reminded of as I was writing. I do that sometimes, including a thought that occurs to me in my writing. Even in replies I don't always feel the need to limit my prose to issues specifically raised by others.

These things you're informing people about may be something you "know" however you wish to define that, but I don't see many objectively verifiable facts. I will read the PDF you linked to when I get the time (I have only been able to scan over it at this point), but I don't expect to find anything that will persuade me that your absolutist view is justified.

[1] It's another thing entirely if they endanger others by e.g. driving while under the influence of said drug, but this as you have said to me on another matter, is a different issue.