I understand Old Toyota was more concerned with their dignity, privacy, and 'Eeew' factor, and by extension, the moral rectitude of said employers.
I've worn many hats in this life. I started out busting users, then became one (a 'social' user and only after I resigned from the cops) contrary to the propaganda, drugs were a lot of fun, and way more fun than getting hammered on alcohol! But I've outgrown most of them. Now it's just prudent to abstain for a variety of reasons, frugality being one!
I also in recent years, worked in an industry that required the 'pee test' on sign-up, and they also have a neat little clause that stipulates that, in the event of an accident or incident, every employee on that shift from management down, is tested as a matter of policy, whether they were involved or not.
So I have seen it from all perspectives. I think it is a necessary procedeure in some industries, but I also think the broader 'war on drugs' is and has been, an insanely costly misstep, and global thinking needs to pivot toward preventive health, regulation, and decriminalisation, without getting into a drug debate here (pointless).
Bottom line is I am now free to make my own decisions, including living in countries where I can enjoy certain substances without harassment, but if I needed to, I would 'pee in the cup' again. Also, having not had time to read this huge thread in full, I wonder if Old Toyata went ahead with it? And are they now employed at the 'cup' place?