It is not about race, but about power. Cops just want the power over people.
What other occupation can one shoot or kill an unarmed person and then get paid administrative leave, have a grand jury determine whether there will be charges. A normal person would be arrested and charged right away.
What we see are cops acting in fear. They need to take a step back and reassess the situation. It is not necessary to cuff and bring the person in. They need to learn to let it go. But it is the mentality that their job performance is being judged so they need to ticket, cite, or arrest someone.