It's hypocritial to be 'for' steroids but 'against' insulin.
It's unnecessary chemicals they shoot into their body to look better.
It's all in the same boat. They don't need test, they don't need GH, they don't need insulin. It's all elective, done to improve physique. IMO, if you follow BBing, just be cool with all of it. When you say "AAS is perfectly fine (I do it myself) yet anyone who uses insulin is wrong", it's just not a strong argument.