I think what bothers me most is that the person he made fun of is a pro-athlete
I think what bothers me most is that other citizens reported him to the authorities for such, which means a percentage of the population agrees with speech being restricted so long as it restricts speech that is contrary to their dogma. Racism is a slippers slope too, I once witnesses a person being lambasted as a racist for calling an obvious blood gang member a thug. What people feel is the definition of racist varies widely and is very much perception based. I could easily see a law like that being used for witch hunts.