I know you may not like this but when it's the truth you cant use antisemitism as a cover, the same goes for racism and Islamaphobia.Breaching the internationally recognised definition of antisemitism isn't going to help your argument, or theirs.
A couple of links for your benefit. Denying the right of Israel to exist is definitely considered antisemitism
https://www.holocaustremembrance.co...ions-charters/working-definition-antisemitism
https://www.adl.org/resources/tools-and-strategies/what-is-anti-israel-anti-semitic-anti-zionist
Not sure lol is the right word for racism.
also IMO antisemitism should not be defined by Israel but by people that can define it correctly.