That had immediate feedback, but hasn't seemed to result in any systemic changes. Macklemore references this in his song A Wake.

I grew up during Reaganomics

When Ice T was out there on his killing cops shit

Or Rodney King was getting beat on

And they let off every single officer

And Los Angeles went and lost it

Now every month there's a new Rodney on YouTube

It's just something our generation is used to

I mean.. many states have implemented significant reform. Colorado has had a number of high visibility issues and has made meaningful changes due to the protests and media coverage. It’s just not true to say there hasn’t been systemic changes.