Supporting the State of Irael is antisemitic and antijudaic? What on earth are you talking about?
"All the great rabbis who in accordance with Jewish Law opposed Zionism at its inception did not do so merely due to consideration of the secular lifestyles of the then Zionist leaders or even for their opposition to Torah heritage and rejection of its values and practices, but due to the fact that the entire concept of a Jewish state is in direct conflict with a number of Judaism's fundamentals.
Condemnation of and segregation from anything connected to or affiliated with the so-called modern day "State of Israel" is based on the Talmud, the key fundamental doctrine of the Oral Tradition handed down by G-d to Moses on Mt. Sinai. The Talmud in Tractate Kesubos (p. 111a), teaches that
Jews shall not use human force to bring about the establishment of a Jewish state before the coming of the universally accepted Moshiach (Messiah from the House of David). Furthermore it states that we are forbidden to rebel against the nations and that we should remain loyal citizens and we shall not attempt to leave the exile which G-d sent us into, ahead of time."
http://www.nkusa.org/