did you call @berniesanders a fag because he is a fag as in someone who has sex with the same sex, and because you somehow fear homosexual intercourse so much that you call people a fag out of pure phobia.
or did you call him a fag as in he harasses you in an obnoxious and way-too-easily triggered way and thus was acting like a biggot, and is now further being bigamous/abusive (a fag) by accusing you of hate speech because you used a slang that he felt could be attacked.