Pro tip, tell them you want to end your subscription immediately. Don't say anything, awkward silence. When they ask an another question to goud you into staying repeat the first statement. If they ask rando questions, silence.
They give up in under a minute. Be polite but obstinate.
Yes, I believe drug use sites are helpful as a bandaid to this situation. However I don't understand why safe access to drugs isn't yet on the table.