Your thoughts on black lives & blue lives matter?

Ok I know this is a sensitive topic to all, but I just wanted everyone's opinion, whether it be biased, rude, personal etc. First and foremost, I do support black lives matter to an extent. I believe it's very unfair how some cops profile and stop black people for no reason which cause altercations and some even death, my boyfriend and sister have been stopped multiple times because of the car they drive. I also support blue lives matter because as a friend to a wife and children of a cop, I completely understand how this could affect them, to lose a parent/relative. Before you comment please take into consideration the amount of times people, not only black, were killed and where they were and what led up to it. Then think of what the cops were doing, where they were and what led up to it.