The protests are about changing the system for a very specific thing: stop targeting people of color and brutalizing them, sometimes killing them, while arresting them.
The issue over MI people is not clear cut. What message exactly would people be protesting to achieve?
I’m fuzzy on this memory, but I think a few years ago there was a young, black man who was killed by police for resisting arrest and was MI (which was why he was acting in a way to get arrested in the first place). I recall he was walking down the middle of the street holding a weapon. I don’t think there were protests for him because he was clearly committing a crime and resisting arrest (so MI was not a sympathetic excuse

)