Some of the issue in metro areas is due to blacks being a higher % of the folks in poorer socioeconomic situations. This in turn leads to a higher % of problems and crime from that group and biases cops to no longer look at them as individuals, besides whatever individual biases already exist, which becomes dangerous to the group. In time and again, besides any individually acquired prejudices, it becomes a norm to have a 'shoot 1st and ask questions later' attitude in a non literal sense and obviously too often the literal one. In that job, some profiling is actually unavoidable, in some cases advantageous but when it's done in a non-reasoned dichotomy or overly biased fashion, not seeing the individual, we get what's been happening.
I know some will look at this post as a bit bigoted but if you've seen my posts you will probably understand where I'm coming from. If we're going to solve this problem, we have to recognize it exists and all the iterations of why. For instance. I had a retail shop near north by the lake (south Lincoln Park) area. Fortunately we didn't have much in the way of theft or attempted scams etc. but I know that 80% of those incidents were by Black folks when they are a small % of the local community. That could have biased me but it didn't (I hope) unless a guy looks the part other than his skin. Trench coats, poor hygiene etc.
Now in my business, some of my best clients are also black so perhaps that experience has kept me from biases or perhaps it's just the way I was raised but I'm sure that being a cop that had less understanding in his developmental years and/or a lot more experience with these unbalance incident totals is going to have some trouble keeping an open mind because they've become numb to the real causes. Same reason other countries show extreme biases to ethnic populations. Lack of understanding by seemingly everyone. Cops in certain areas have a very difficult job to do and I wish I had an answer for this. How do you get a community and law enforcement with this much animosity towards each other to cooperate and ever work together? That's a large component of what's needed to elevate these communities.