Causal attribution is different from the assignment of responsibilities, notwithstanding whether this attribution is correct. Maybe some drug did cause somebody problems, but from the social perspective they may still be "on the hook" and thus "responsible" for all their problems.

I 100% take responsibility for the choices I made including the choice to take the drug in the first place.

However, the God complex delusion I attribute to the mushrooms.

If you have had a Dog Complex Delusion it is on you, not the drugs!

if you had a DOG complex, that is most certainly drugs ;)

a GOD complex on the other hand I may agree with you :)