Actually many schizophrenia patients are in fact working and living relatively normal lives. The costs I linked are the actual current costs for Germany and inc

Actually many schizophrenia patients are in fact working and living relatively normal lives. The costs I linked are the actual current costs for Germany and include reimployment measures (have a look at the second link). But you're right, it is of course an outcome we as society should try to prevent anyway. My point was that there won't be a societal crisis, even if the assumption of THC being the main cause of schizophrenia were true. With or without legalization, better drug abuse prevention through education, widely accessible addiction treatment and de-stigmatisation of mental health issues are things we should strive for - because those measures actually affect peoples lives for the better.