As a life long leftist, a progressive, a sometime worker for social justice (basic level stuff -- local charities and all that) and as someone who finds Marx philosophically interesting, I have to admit I'm embarrassed for people whose goal is to shut down...wait for it...diversity.  Note that I'm not embarrassed by them...I'm embarrassed for them.
At the same time, we're seeing a resurgence from people on the far right who want to shut down diversity.  It's often called the "alt right", but that's an ironically politically correct term they invented for themselves.  What they really are is a pack of racist, misogynistic bottom-feeders, and they are availing themselves of every opportunity to take us to some very, very dark places.  The rest of us -- the people who wouldn't dream of drumming a professor out of a job because he left the room, and who know that the Drudge Report and Breitbart are complete trash -- better hold onto common sense.