Stealing a definition from below:

> Sexism definition: Prejudice, stereotyping, or discrimination, typically against women, on the basis of sex.

I'm not arguing that this isn't a terrible, unwarranted attack; I'm arguing against the dilution of the term. Not every attack against a person of another race is racist and not every attack against a women is sexist.

Where is the "basis on sex" in this story (genuine question, i.e. did her gender motivate the attack)? Without this, you can call it many things but not sexist.