Yes, this is indeed the foundation of Zionism, and I remember learning these words on the Kibbutz Ulpan. Political Zionism started as a a quite strongly socialist movement (something that right-wing Zionists sometimes forget). But nothing is set in stone, things are in constant flux. I am not quite sure however, that I would describe some of the actions of Im Tirtzu as being 'liberal democratic'. Certainly their attitude to certain University courses does not fully support this claim. However, if we are to have a liberal, democratic, Jewish state, then we can hardly ban Im Tirtzu, just as we cannot ban Peace Now. But perhaps, we do need to clarify exactly what we mean by "Zionist values". And I suspect that here, those of us who grew up with socialist Zionist values, based on the rights of all the people living in Israel, and the views of more "modern" Zionists may depart. Much as I disagree with the settlements, much as I disagree with the apparently disproportionate power of some extreme Jewish practitioners, I will still stand by Israel. Not least, because it is still a democracy. Just.
Trump: Middle East would be more stable if Saddam, Gaddafi still in power (Reuters)