The comparison is fine thank you. It proves that sometimes person A being fine with thing something does not always make it the "problem" of person B.
Forget drugs for a second and just look at that. If you don't want to comment, that's fine, but the truth is in your face.
Being needlessly cruel to somebody reaching out for help because your knickers are in a twist is saddening. Maybe you should excuse yourself before you say something really clever like she would be doing better by hanging around the very people trying to get her to do cocaine on a Sunday afternoon...