hahahaa, Nah most of the "Stars" here are cool people, CQ is Gold, Tony doherty is a champion promoter, i hope that i did not offend him with this thread.
No you do not offend. I have seen your cousin and I can see why you are concerned. He is not as bad as you say and with time he may be OK. AS far as delusional, well you have a point. Anyone that thinks bodybuilding can take the place of a job is lost. It is like any other hobby, you do it after work for kicks. If you get real good at it then you wont need to work but that is a tiny percentage. I see it all the time, people give up their job to get ready for a local show.
So what to do from here. 1st, talk to him about your concerns, tell him Ronnie won 4 Olympias with a 10 hour a day job. Personal training certificate can earn some good dollars but you have to know how to use it. Perhaps he should start training some of his mates for free, as practice, so when he gets some clients he has some experience. He seems OK, just lost which is normal at that age. At least he has an interest and a goal even if it is misguided, it beats doing nothing or being a drunk or loser pillhead.
Bodybuilding is a great pass time but does attract some fruits, from my experience most fans are OK and don't see it as gay. Keep training mate and stay positive, there is plenty of worse lifestyles than training.