Are liberal Zionists really Zionists?

Are liberal Zionists, as detailed by Leonard Fein in Dissent, simply a figment of their own imagination? So says Phoebe Maltz:

“It is inconceivable by a mainstream or marginal Western (and I do not include Israel as Western) liberal standard that a good Jewish liberal might be interested in doing good for Jews, or for Jewish and non-Jewish Israelis alike. If you are a Jewish Israeli advocating for gay rights, redistribution of wealth, and less stringent marriage and conversion laws, that is, causes that are not specifically about the Palestinians, you are invisible as far as the left anywhere but Israel is concerned.”