Long-time lurker, but I needed to chime into this conversation and support dazedandbemused's account.
This happens everywhere, even if you're in a city known for its rich activist history. Being a person of color (especially a queer person of color) can be extremely alienating. This ranges from aggravatingly racist ("Let's be real, the only reason we read genre fiction by Octavia Butler is because she's black") to uninformed ("My work on the global city has nothing to do with race"). This isn't to bash on my program; I feel well-supported by the faculty and I have a wonderfully kind cohort. But (micro)aggressions still happen.
I always support having open conversations about difficult topics such as race and police brutality, because social change is impossible without dialogue, as difficult as that dialogue might be. Maybe, just maybe, a conversation will bring us to a space of greater understanding and empathy. But without trying, it'll never happen. This is particularly important to me because I entered academia in order to allow my activist and teaching spheres to overlap and mutually inform each other. My scholarship is community-engaged work, and I wouldn't have it any other way.