I have no doubt whatsoever that New Zealand’s colonization was violent, inhumane, and broadly under-accounted for. This doesn’t somehow excuse Israel, which is unique by virtue of the recency of its founding and actions.
Besides, things don’t need to be special or unique to be wrong. Everything I’ve said would apply equally even if Israel does not stand out in its contemporary applications of violence (which it does), and still bears unique relevance by claiming to represent people like me (which it doesn’t) through blanket claims of antisemitism.