Will Smith is human. Good observation.

If Rock had joked about her cancer, I would have the same exact take.

You do not resort to violence because you can't control your emotions. They teach that in kindergarten.

The manly thing to do is have a conversation afterward. "hey, not cool man. I don't know if you are aware, but my wife is struggling with hair loss due to a medical condition."

See, not hard. My 16-year-old is equipped to have conversations like that with adults.