“The supernatural series takes place in the 1950s Jim Crow-era south, following a group of African American protagonists who must battle racism, monsters, and terror — with the lines blurring between all of those elements.” The new HBO series “Lovecraft Country” tackles racism through the lens of the horror genre. Written and developed by Misha Green (“Heroes”, “Sons of Anarchy”), the supernatural series takes place in the 1950s Jim Crow-era south, following a group of African American protagonists who must battle racism, monsters, and terror…