Jews outside of Palestine are not uniquely descended from Jews that lived there 2000 years ago. Also the idea of Jews as a homogeneous people is a fairly recent phenomenon, people married into Jewish families, converted etc...
Even having mixed parentage can make you an oppressor. During slavery, mixed race people were often used in Brazil to hunt escaped slaves. At the end of the day its not about people's parentage but to what group they get put into and whether they choose to use any privilege they have to fight against oppression.
I don't make a claim that they should or should not be allowed to live there. My statement isnt about rights to land, oppressing others or national zionism.
My statement is about heritage and what it means to be “native”, obviously what that means for people and genetic links to semitic peoples varies greatly, and as such, you cannot make blanket statements that “jews are not native” just because you disagree with the nationalist movement.