I'm going to explain why Zionism wouldn't exist without Marxism. It's true that Marx called the Jews parasites, industrialists, and capitalists. Theodore Herzel would be greatly influenced by Marx, and would also say the Jews are parasites and capitalists.

However, Herzel believed Jews were like that because they never had a land to call their own. Had they had a land, he believed jews would be farmers like the rest of the world. His solution to cure Capitalism in Jewish society was to have a homeland, this way Jews can be farmers

Hence why the original zionists were all atheists and Marxists. The first thing they did was set up collective farms or Kibbutz. Contrary to popular belief, religious Jews would not arrive in Israel until 1967.