what's black and white and red all over ? police brutality .
Have you ever seen police brutality? Is it something you consider to be funny?
No, I haven't seen it, but I see that cops want to only beat up black people for no reason, e.g. Freddie Gray, Michael Brown...
Have you considered how the families and friends of those victims would feel if they heard you say something like that? Try to be more sensitive to the feelings of other before making jokes that may be considered in bad taste.