The belief by a juror that law enforcement personnel, especially phrased as a belief that applies to law enforcement personnel as a generic group, is a well established basis for a challenge for cause leading to exclusion of that person from being a juror. The US jury system is build explicitly on excluding these types of belief in juries in order to ensure fairness, impartiality, and individual and case/witness specificity of “triers-of-fact”.

I could understand someone who disagrees with it, but your position would be antithetical to current and historical thought on what defines a fair jury.