This is a lot stronger and better of an argument than trying to argue from DSM definitions. Be cautious about imposing mental states that can affect your decision-making is a good general rule, and yet tons of people happily drink, take drugs, and meditate. You can say each and all of these things have risks but people don't normally say you shouldn't drink because it makes you act like you have lower IQ or someone who's got a motor control problem in their brain.