There are not “plenty”. I will concede that there are, in theory, a few.

Those that join the police force with such positive things in heart and mind either get ground down and quit, a burned out cynical husk of a person, or get corrupted.

Very few have the diplomatic skills as well as the temerity to be able to stick it out. Those very few that can and do are working within a system that is at best so obsessed with measurable statistics there is no leeway for officer discretion, and at worst actively designed to incarcerate as many as possible.

Which version of the system you get exposed to is mostly a matter of one’s skin colour and apparent wealth, which strongly suggests the number of “good ones” is so vanishingly small as to be statistically insignificant.

The response from everyone else should be, “Why would we join a war that’s already been won?”

Give him his own bloviating bullshit back, served up nice and cold.