No, actually this isn't true. According to a Guardian database (admittedly from 2016 but I suspect the figures haven't changed that dramatically) Native Americans are killed by police significantly more per capita than any other demographic at 10.13 deaths per million people. But when is the last time you saw a Native American police shooting plastered all over the news? Black people are next at 6.6 deaths per million, and white people are at 2.9 deaths per million. A clear difference, but not a tiny percentage relative to the rest.
And let's be honest, if those five police officers who beat Tyre to death were white, do you think it would have faded from headlines in just a couple of days?
The media's reporting on police shootings is almost completely context free. Every time a black peoprson is killed by police (except when they're killed by black cops, obviously) the story plays on an endless loop on TV. Because presenting it as a black/white problem generates more clicks and outrage than breaking down what's happening intelligently. Millions of people overestimate the number of black people killed by police by several orders of magnitude.
The media crafts narratives. And only if you're wiling to spend some time looking at the data do you get a somewhat clearer picture of what's really happening.
So my point is, as I've already said, most people's understanding of America's police brutality problem is wildly inaccurate. Because it's been deliberately skewed by the profit motives of the media and yes, organisation like BLM. Police brutality is a terrible problem that everybody should be concerned with fixing. It's not about black people and white and hispanic people marching for their own separate causes, it's about everybody coming together to solve a common problem instead of bickering amongst themselves about skin tone.
The more people who are on board, the better for everybody. Including black people.
How you're getting that I, or anything I've linked to, is defending cops I have no idea. I have never made a single justification or defence of police brutality. This repeated claim is the clearest example of your tenuous grip on reality regarding this topic.