Has this elevated itself to retalitation where I have a claim?

Over the past few months, I have raised concerns with my supervisor, with my "counselor", and with management, over behaviors he is engaging in that create a negative atmosphere (to the extent we have lost 3 people), make it difficult to do my job efficiently or correctly, that ultimately will/could cause issues from a quality perspective that could open our firm up to significant risk.

In my most recent discussion with this supervisor regarding end of cycle feedback, he said my demeanor was creating a negative atmosphere and creating issues within the group so he was docking me. However, when I asked for specific examples or a basis for this - they could not provide any examples and the only response was - "well your peers are expressing similar concerns". Essentially the message was, if we question their actions and raise issues (as is the policy of the firm) then that will result in a bad review for me, which ultimately will affect my compensation, promotions etc. I truly feel like I am being bullied into not voicing concerns and it is creating a hostile environment for me to continue to work there. Note that all other reviews from the peer group and other managers around me ARE positive - and most people that I work with are tell me if I leave the group they will leave as well because of these concerns. I am not sure if this rises to a level where I have a claim or if I am just at a point where I need to monitor but I want to know what type of documentation or next steps I should take to protect myself. I don't want to but will seeking other employment hurt my cause? Would appreciate any general information you can provide. Thanks.