I'm constantly amazed how badly people respond. This is blatantly false, they're explicitly noted in the outcomes reporting.
Furthermore, they don't "help with teaching", they're basically paid tutors.
You're taking the weakest interpretation to strawman Lambda with, and I'd argue you're mostly just arguing against falsehoods.
Yes I went to Lambda, and yes I'm employed as a Software Engineer.
"Bootcamps"/Vocational schools, or whatever you want to call them, are the market's response to the college system falling apart at the edges. IMO the weakest universities are as bad as the worst bootcamps.
Edit: Also just curious, have you compared placements rates for Lambda or any other "bootcamps" to any universities?