Whether or not an ethnostate is good depends on the ethnicity of the people of the ethnostate.
(/s, it is POV of a racist)
As contrary as it might seem, pointing out that Israel is a Jewish ethnostate is not antisemitic because that is what it is.
That doesn't mean all Jews are on board with it.
Similar to the white ethnostate above it not meaning all white people are on board with it.