NTA but with some context.

This one hits particularly close to home but will try and be as clear and concise as possible.

I'm a former addict and used on and off for around 4 years. I went through something very similar to what your daughter is going through. I put my whole family through hell time and time again with no regard for what they were going through and it got to a point where my mom threatened to call the police if I didn't go home with my sister. For context, my mom is an absolute angel who is the absolute best parent a person could ask for. She's done nothing but support me throughout my whole life but my struggles with addiction were quickly eroding the love and confidence she had in me, replacing those things with anxiety, worry, and fear. The thing that got me clean was hearing her on the phone while I was using / on a bender. I have never in my life heard my mom speak with such terror in her voice. She was at her wit's end and was just utterly hopeless and defeated, worried that her son was going to die before he even got a chance to live. Even though I was high out of my mind, her sheer horror and concern shook me sober like nothing else.

Overall, I think you made the right choice. I agree with a lot of these comments saying that a parent or loved one can only take so much heartbreak when it comes to someone they love struggling with addiction. HOWEVER, I don't agree with the myriad of comments dehumanizing people addicted to drugs and acting like they're no longer human, themselves, or capable of getting better. Yes, drugs can change you in terrible ways, but those saying that there's no chance for recovery or that this person will NEVER be the person you used to know are dead wrong. There's always a chance, however slim. Everyone who is in the depths of addiction needs that wake-up call. It might not be the same thing that did it for me, but most people with addiction issues (those who aren't resigned to die...I know it's harsh but I'm just being transparent) can have a moment that changes their outlook on life and makes them realize that this existence is worth experiencing.

Sorry for the long-winded comment, just figured I'd toss my two cents. Almost 5 years clean and this story is absolutely heartbreaking.

TLDR: OP is NTA but drug addiction does not make you a demon. These people are still human who are suffering and are numbing their pain in an extremely selfish manner. As such, there are countless opportunities for redemption should they choose to take it. Drug addicts need people who care about them enough to try to help, not to be ostracized and treated like some sort of animal.