My son is in this business in Seattle.
Several of these “boot camp” people have come and gone in his office. A two or three month course of study doesn’t provide the background to do the job.
It gets you one of two things.
If you've done the job for years (like me), then it provides you with a piece of paper that says, "No, really. WBill might know what he's talking about." If I had to wade through HR Departments and the like again to find a job, then I might look at getting certified.
OR, it's an excellent start. Gets your feet wet, and might set you up for a low-level entry position where you can actually start to learn something.
So, in those regards, I suppose that a bootcamp might be useful. Anything else, meh.
You know, the way I knew that the Dot-Com boom (back in the late 90s) was coming to an end, was by the flyers that were tacked up on phone poles: "Become a MICROSOFT CERTIFIED ENGINEER in THREE WEEKS or LESS!!!!!" At that point, I said "The market is saturated, better find myself a safe solid job and hunker down for awhile.".
Might need to start thinking in that direction, again.