As for why the t shirts are offensive
insider.foxnews.com/2016/07/12/chicago-blm-activist-we-need-abolish-police
They want to abolish the police. I find that to be an extremely dangerous statement and as a cop beyond offensive particularly in the current climate.
I like how some people point out that when a person who is black speaks, the person is held up as the voice of all blacks.
White people get to have multiple voices and are not touted as the voice of white America. One person spoke and said there needs to be more money. Can't run police on a shoe string budget.
The woman who spoke about abolishing police talked about a community method.
I have retired to a foreign country and they have a local force that deals with issues between people , thefts, Not sure what else. They are there to smoothe the waters, but it is sometimes difficult as everyone is related to everyone.
There used to be a man who was to be called to handle disputes but no money for that.
There is the military police who handle big crimes. Not sure who to call or why. The idea the BLM matters woman proposes is not that wild. I imagine there are examples of this model in other places.