If even Tilray can't make money from marijuana, what hope does any company have?Tuesday is turning into a lousy day to own marijuana stocks, as bad news from cannabis company Tilray Brands (TLRY -19.30%) is taking a toll on pretty much every other marijuana stock out there. Tilray reported a miss on sales this morning and a $0.12 per-share net loss.Shares of Cronos Group (CRON -1.86%), Canopy Growth (CGC -8.74%), and Aurora Cannabis (ACB -8.55%) are all suffering as a result, down 3.5%, 7.8%, and 8.5%, resp ...