My feeling is that you have to put the problem in perspective. 600 to 700 black people die every year in Chicago due to violence perpetrated by black gangs and black drug dealers. Every few years in Chicago, a single unarmed black person is killed unjustifiably by a white cop. Both occurrences are horrendous, but which problem is more immediate and deserves the most action and resources.
My answer to you is talk to more black people that live in neighborhoods like the West and South Sides of Chicago. That's what I have done most of my adult life, especially when I was teaching and coaching.
Weiss wrote something that didn't belong in a theatre review. That doesn't make her a racist.