Compare the situations of Hill and Schilling in terms of their history of making divisive comments.
Schilling also had a history of divisive commentary when he was let go.  It wasn't a one-time thing.  Hill made a single comment, while Schilling has made an effort toward being a champion of far-right anti-liberal commentary.  That's been his thing for years now.  He's also an unlikeable, bankrupt, drunk, which may have also had something to do with it.