There are ways of being non-accusatory, but also presenting the exit interviewer with food for thought. First, give a lot of genuine praise during the interview

There are ways of being non-accusatory, but also presenting the exit interviewer with food for thought. First, give a lot of genuine praise during the interview. You must have like something about the job, mention it. All of it. Next, explain the truth about why you're leaving and the problems you saw, but do it in a way that is as charitable as possible to the person(s) that are implicated. Avoid direct character insults. Acknowledge genuine reasons why that situation may have legitimately been happening. I believe there are ways to be mature and candid. And if you can do that, it's often possible not to burn any bridges, but to also reveal the truths you want to reveal.