[Asparagus7426]

It's more of a vilifying caricature than an actual "interpretation of Zionism." Even the most right-wing branch of Zionism, revisionist Zionism, which indeed advocated for the entire biblical territory of Israel in the past, simultaneously believed in full and equal rights for its Arab/Palestinian citizens, as outlined by its founder, Ze'ev Jabotinsky.

Zionism at its core is the belief that the Jewish people have the right to self-determination in their ancestral homeland. This is precisely what "anti-Zionism" opposes. Middle Eastern/Arab "anti-Zionists" advocate for exactly what you mentioned in your second paragraph. Additionally, depending on their political affiliation, some may seek the subjugation, expulsion, or harm of the Jewish population in Israel/Palestine. The percentage of Palestinians advocating for a one-state solution with equal rights for all is at most 33%, according to the Palestinian Center for Policy and Survey Research (PSR).

Your "left-leaning" friends may not have expressed anything like that and might simply want to express solidarity with the perceived "weaker" side. However, by proclaiming to be "anti-Zionist," they are undoubtedly associating themselves with some aspects of hardcore Palestinian nationalism. It's puzzling to me how this is compatible with traditional left-leaning stances and why any self-described left-leaning person would want to be associated with that, except due to extreme ignorance about the meaning of the words and the actual situation on the ground.

[twixfel]

The Palestinians were/are already there. The Israelis have as much right to that land as modern day Anglo-Saxons (i.e. English people) have to North-West Germany and Jutland, i.e., none. Having said that, just as I support the continued existence of any other country, many of which were built on conquest and colonisation (e.g. the United States of America), I support the continued existence of Israel, but it's a very difficult to argue that the expansion of Israel and the colonisation of the Southern Levant by Jewish settlers was justified or morally right, just as it's difficult to justify the Anglo-Saxon conquest of what became England or the settlement of the Americas, whilst not believing either that the US or England should cease to exist.

[Asparagus7426]

No one is denying that. What is often overlooked, however, is that Jews were always part of the historical landscape of Palestine. They were only a minority in Palestine because of European interventions (Romans, Byzantines, and Crusaders). Referring to Jewish settlement as "colonization" is ridiculous because, like the Palestinians, Jews are indigenous to this region. Even more so when considering the cultural aspect of indigeneity to a region. Judaism is a direct continuation of Canaanite and Israelite culture, which predates colonization. Whereas modern Palestinian culture is the result of the Arab/Islamic conquest of the Levant.

The issue that some people characterize as colonization is, in reality, a matter of migration. In fact, one of the early demands of the Palestinian nationalist movement in the 1930s was to halt Jewish immigration, and they sought to enforce this demand through violence. And this violence snowballed to the current ethnic conflict between arabs and jews. If we compare this to the present day, imagine a bunch of trump supporters marching through the streets attacking/murdering Mexican immigrants. It's a no-brainer that these people would be considered racist criminals. But this is exactly what happened in Palestine in the 1930s. And the situation changed only for the worse. Yet, people (especially the left) still sides with those criminals instead of supporting a lasting peace between the Jews and Palestinians.