I think you should freak out, and be all like "how come you get to treat me like a leper because I smoke weed, what gives you the right to withold your love for me on a performance basis, why do you sit by and watch the society whose views you expound the virtues of and mimic treat me with the same disregard and disdain as a death camp ss guard. How could you do that, you narcisists!"

Your parents would probably be all like