I can’t argue with your experience. It certainly seems valid enough.
But you should understand that yours is a very small statistical sample. Your friends and acquaintances number a few dozen perhaps? Out of how many thousands of bootcamp grads?
Just as a matter of statistics, a large portion of those thousands of grads will not hit the ground running; they won’t be contributing much immediately. You and your friends are the exceptions that prove the rule.
I know from experience over 20 years in IT that there are many subpar developers. I’ve seen my share of deadweight. Do you really believe that anything close to 100 per cent of bootcamp grads will share your experience? If you do, then you don’t really understand much about human psychology.
My point was that you can do just as well without a bootcamp. A bootcamp may accelerate your schedule, but I’m not sure that’s a good thing.