"It makes a joke of the pain and suffering involved in this exhibit."
What about the pain and suffering implied to men -- the fictitious owners of those fictitious penises? Or doesn't that matter, because they're men?
"If you want to attack me or my artwork, then confront me with discussion..." (said the artist).
How about: If the artist wants to attack men or whatever she has against men, then confront them directly with discussion instead of symbolically, sickly, cutting off their penises? (And can you imagine what kind of mentality would sit and make these things??? Hmmm... what a mental image is presenting itself to me...)