anti semitism is a very tricky thing which can be found on both sides of the Israel/Palestine issue, both Russia and Ukraine are deeply anti-semitic, both christian and Islamic fundamentalists the world over are deeply antisemitic whether or not they support Israel
Zionism is a modernist nationalist movement that developed parallel to other political movements in the early 20th century including nazism and other forms of, as well as arab nationalism, black nationalism, operating in simultaneously as a settler colonial European based ethno nationalism, as well as having similarities with various national liberation ideologies( there are eastern european current, polish or ukranian nationalism etc.
So zionism has a broad inheritance from both rightist nationalism and progressive socialistic internationalist movements, the founders of israel were veteran antifascists from a range of nationalities and political backgrounds, but the state of israel was also a form of settler colonialism and was from the beginning white supremacist, and carried various European colonial idea, practices and prejudices.