You think leftists can just join the police and fix everything from the inside? Have you tried? You think Republicans are more likely to do the job because not enough leftists apply, and not because the system selects specifically for conservative-minded people?

Leftists don't villify the job. Leftists villify the system that actively selects against them, educated people, and people with empathy, a system inherently rooted and founded upon racist principles.

The system cannot be fixed from within by infiltrating it with some lefty cops, and your suggestion to do so is laughably naive at best, and maliciously counterproductive at worst. The system needs to be rebuilt and retooled. And that's not going to happen just by being nice to cops, or by leftists becoming cops.