Maybe you are right and I won't pooh-pooh anybody who participates, but what about when Freddie Grey was killed? Similar thing happened in 2015, protests around

Maybe you are right and I won't pooh-pooh anybody who participates, but what about when Freddie Grey was killed? Similar thing happened in 2015, protests around the country and that didn't seem to accomplish anything. The protests now are much larger it seems this time, but unless they go on for a while (which I hope they do), I just don't see anything changing. It seems like law enforcement isn't going to have a sudden change of heart because people are telling them they are wrong and local politicians don't seem to be effective at enacting change in their police departments.