Toxic work culture - Quantitative Analyst Fidelity Investments Employee Review

My manager lied in my performance reviews and HR acknowledged that he was lying, but said that Fidelity's official policy is that factually inaccurate statements in performance reviews are not considered a problem. HR also said that if my coworkers were spreading false allegations about me, that was a legitimate performance problem that my manager should report about me and that they were not willing to do anything about the defamation. All of this violates their written policies on professional ethics, but they have a disclaimer on the policy that basically says it doesn't actually mean anything.