The thing is, if BLM manages to peacefully obtain Police reforms that not only eliminate racial profiling but also Hair-Trigger reactions and abuse/overuse of weapons on civilians, that might very well benefit Everyone. Poorly trained Police Officers who are too quick on the draw could be/might be responsible for at least some/possibly many of those deaths, regardless if the target is Black, White, Hispanic or Asian.
If BLM can fix that, then it should be welcome by all.
The fear is that some may twist BLM into a War against Cops, something neither side wants. That is the danger, the risk.
edit: I have to add, in all honesty, even if the statistics show that more White People are killed by Police Officers than Blacks, how do you think the Country could react to a movement called "White Lives Matter"? You know that would bring out the KKK and the White Supremacists and other Kooky Birds and Crazies much more than anything going on now.
I think this country needs the BLM, as long as it doesn't devolve into more events like in Dallas.