You seem to believe that because of ludicrous stereotypes in the past, until someone has tried marijuana and decided that it is bad, they cannot correctly favor keeping it illegal. Yet, from the 1970s onward, most American adults got to know about marijuana from using it or having friends or family who used it. Enough have had a bad experience with marijuana that it has remained illegal. So also has there been an accumulation of medical research over the last several decades that increasingly validates opposition to marijuana legalization.