If a woman walks into a room of men and they start making catcalls, lewd gestures and inappropriate touches, did she cause them to be pigs, or were they already pigs and her presence simply illustrated it clearly?
If she calls out their piggery and sexism, did she cause it or direct our attention to a reality?
Obama "caused" racism like the pretty woman causes sexism.
Trump took what existed and fed it and nurtured it and called it good.