Writing fantasies about an actual person being beaten is offensive.

There is nothing to "interpret". You wrote a revenge fantasy where someone you dislike was beaten. You named her by name.

If you wanted to make an abstract point, you could have made it perfectly well without writing someone's name into your violent revenge fantasies.

But the threat is the point.

Your argument, "It was just a story!", features prominently in many court arguments against orders of protection from aggressors and from commercial shakedowns. It rarely holds water because it's obvious bullshit.

As for your threat of a "pissing match" - well, that really does sum up how you see dialogs with others: as a pissing match. Indeed, your initial comment was an attempt to piss on the original writer.

Abuse is easy. Any moron can be rude. It takes no thought whatsoever. The fact that you brag about your pissing contest skills says everything about your worldview.