I think we have a duty to stop any genocide, by all means necessary. It's called defending yourself.
Zionists are a political movement that are using religion to justify their aims. The extremists are using to use it as an excuse to steal land, kill, discriminate and it's extreme cases justify genocide.
This is a play book which we have seen used for thousands of years to commit all sorts of heinous acts. Thankfully most of us put our faith in science rather than fiction. But I'm more than happy for people to have an imaginary friend as long as they don't use it as an excuse to start wars, beat their wives, destroy their childrens sexual organs and just generally use some obscure writing to justify something that suits their opinions.