To combat institutionalized racism, this briefly worked in California, is to encourage POC communities to arm themselves with rifles to protect their communities without relying on racist law enforcement. This empowers them with agency to threaten the status quo with strong demands for positive change using the specter of violence.
This was the Black Panthers, and Reagan used strict gun control regulation written and leveraged by the Republican Party with money from the NRA to disarm black people.
My dude, the last the the US needs rn is even more guns going around. You're looking at this from the wrong angle. Police reform is the answer. If law enforcement officers aren't exhibiting racist behavior, the communities won't need to defend themselves in lieu of proper protection from the police they're paying taxes for.
Hiring good cops is the solution. Not giving scared people more firearms.
LEOs exist as an enforcement arm of the state, one which universaly will always hold power over others, which can attract the wrong type of individuals to the profession. Furthermore, their interests are not your intrests.
Reform will not change that, cops and corruption are a trope as old as they've existed for.
Alternatively, you are armed and advocating for your own interests, its not that you will use the tool at your disposal, but a matter of having it.
I really wished this fantasy of yours would come true, but the only kinds of people who desire to be cops are racists and power abusing morons. The ones who are legitimately benevolent leave because the pay and stress are not worth the long hours, high risks, and lack of respect from the public.
Giving a small group of people guns and putting that group in charge of enforcing a set of rules (that they’re not even required to know) for everyone else seems like an approach that totally lacks common sense in the first place imo.