OK, so people can use the definition instead. In fact it might be more useful.
I’m still not sure what it means, judging by the comments here it (murderer / terrorist etc) it does seem to be used as a slur. So yeah, using the definition instead would be useful.
They’re saying that in the same way terrorist is not always a slur but is used as a slur sometimes, Zionist can be used as a slur. I think it’s a fair take. It’s odd to specifically list Zionist as a contextual slur when you can just say no slurs.
I don’t know if I fully agree but that’s their argument as I understand it.
Edit: Idk why people are down voting me trying to explain someone’s argument.