Individuals are individuals, but BLM is a group that stands for this. That's the group philosophy. Here's the difference.
A group like the police will publicly say that it is unacceptable for their officers to be racist, for a gun to be used without warrant, for excessive use to be used in general. A group like the police accepts and acknowledges that not every officer is good, and doesn't keep an officer even when it is proven the individual officer has not been working within that written set of policies.
BLM has no written policies for its members. If a member happens to be racist or violent, BLM says go for it. In fact, BLM itself has organized chants encouraging the death of police and makes no apologies for it. Not only was there no apology, but no separation at all from it. If you had a group of cops holding signs and chanting ANYTHING that even sounded like "PIGS IN A BLANKET, FRY THEM LIKE BACON", you would have fired officers. The organization would no longer support those violent / racist individuals. BLM does.
What I am getting at is BLM is not just a group with bad eggs in it, it is a racist, terrorist group like KKK. The group has a racist philosophy, violent tactics, and no code of ethics. Not just a few bad individuals, the group. There has been no separation thus far from a "peaceful protester" and the people lighting gas stations on fire. No BLM leaders are saying "This isn't what BLM is about, this is not BLM, This is not what BLM stands for, we don't approve of this racial and violent behavior".