People don't get this for some reason. You can't regulate people's hearts, but you can pass laws to help them modify their behavior.
I also like and support BLM, but I was beyond frustrated with them crashing events and then refusing to meet with people who are in a position to help them get their agenda passed. Saying "we have our policies and info on our site, read up on it", is not cutting it. Why are you popping up at a politician's event if you don't want an alliance or help with with your agenda? It's a mixed message. Most of the people who are in a position to help BLM do what they want aren't close enough to the black community to know what our issues are, and what needs to be addressed. They've basically said "we need help", and when asked what kind of help is needed, are telling people to go educate themselves. Shouting "we are here notice us, hear us, do what we want", and then refusing dialogue later when some signals they are willing to listen and get said education seems immature and short sighted to me. If you're truly seeking results/reform/change you have to interact with people. It doesn't mean you have to be friends and support the candidate if you work or meet with them. You don't have to be friends with someone to use them to get your agenda passed.
That said, BLM is not just ONE group, its several organizations doing the work under the banner/message of BLM. Not all are affiliated with the official BLM organization. There are pockets of people doing the work trying to get laws passed and address other issues such as economic empowerment etc. I think even the main BLM has other items than police reform on their agenda, tho you don't hear about it much. Like President Obama said tho, you need both the attention and the follow through if you want to be an ongoing, powerful force. In the age of social media with all the momentum they have right now, sweeping changes can be made: organizing locally to get politicians out who don't aid the movement, etc. Fear of losing their job is a strong motivator. Whether they truly support you or not, people will do the work for you and help you get what you want to keep their jobs. Again, they don't need to be your friend to work your agenda. This has already been seen in a couple of places, and I hope it continues.
Not to mention hospitals. If there wasn't a "colored" hospital nearby or a doctor willing to come to a black person's home, you were SOL.