It's an odd one.
Calling someone a terf is a conversation ender. And it's loaded. Massively.
I'm loathe to play into anyone's hand by embracing a term that is designed to dehumanise.
Because it is very definitely used to strip the receiver of any humanity. Replace it with almost any other word like woman, Jew, and it's shocking.
On the other hand, saying yeah, I'm a terf, so what? Has a certain intractable assertion to it that is very satisfying.
You stop being someone who has just been insulted and stripped of humanity and become an upfront challenger, out and proud.
But until more people are willing to reclaim the word terf and tip the balance between it being an insult and it being a recognised bit of desperate rhetoric, it feels as though we should take a middle ground that might work better.
So not deny it and get defensive, laugh at it and say that's a meaningless term. Or assert that if you're a terf, so is everyone on the planet, including Mother Nature.
In other words, don't give it a hard landing that it can bounce off, give it a soft landing so it fails ricochet off its own momentum.
I'm not sure that makes sense. I had in mind and the way you play tennis. When you get a softball it's a lot harder to return it, than when you get a hardball, the impetus of which can be used against your opponent, despite it being generated by your opponent in the first place.