No, that's not antisemitic in the least. Israel is committing a genocide, and it should be treated as a pariah state and all measures possible employed against it to pressure it to cease.
What is antisemitic is, as mentioned in the title and seen advocated by people in this very comment section, advocating for the ethnic cleansing and genocide of Israel, especially when combined with the bizarre notion that Israel-born Israelis can just be shipped back to where their ancestors came from in Europe, like some bizarre mirror image of the Nazis in the 1930s planning to ethnically cleanse Germany of Jews by shipping them to where their ancestors came from in Palestine.