Have you ever studied any other martial arts besides BJJ? Because it doesn't sound like it. I think your views are a little biased. Any (yes I said ANY) martial artist who has studied numerous arts can tell you there is some value to be learned in all forms.
Brah, I first started training in Aikido at 8 years old, I'm over forty now. I went through the whole Judo, Karate, tae kwon do thing. I remember when Hapikdo was the bomb because of the movie Billy Jack and so I went into that. And then found a guy in Hawaii who taught a modified version of Wing Chun. His name was James Demile was a student of Bruce Lee. I chose his school because at the time they were the only ones doing full contact training. I didn't start BJJ until I was almost 30 and that's only because a friend of mine I use to tool started schooling me. I never had any interest in rolling around on the ground and always felt I could keep my opponent from taking me down with my strikes. I was wrong.
The reason I think Jiu-Jitus is best for the average guy is that one you don't have to have great athletic skills as you would in other martial arts especially one's that require kicks. Also, in most street fights things get wild very quickly where you can't set up your opponent for a nice clean strike. You clinch and get tangled up and often fall to the ground. But this is the world of Jiu-Jitsu.
But, as I've said before, in high level combat, Jiu-Jitsu is not enough. Fighters are familiar with it and know how to defend. Their stand up game sucks and if Rickson were fighting today with that chin up leading stomp kick attack he would get KTFO. He'd have to modify his game to go up against todays fighters.
Friend, as I read your posts I see you are not a bad guy. You seem very well thought out and level headed. I don't see you as the type to walk around with a tough guy attitude. I know I came off a bit heated but it's more passion. A lot of today's TMA training is worse than worthless because they give a person a feeling of false confidence. The nonsense they are being taught will get them hurt or killed because they really believe they can defend themselves. But so much of that has changed because of Rorion Gracie, Gracie Jiu-Jitsu and MMA. He changed the world of martial arts. And I don't even care much for Rorion personally. But I can't deny the impact that he made. People are now seeing what fights are like. It's not like in the movies where everything is so impressive with the hero sending guys flying left and right. Fighting is a very brutal violent endeavor where people can really get hurt.