I'm not interested in your questions, which betray a facile understanding of the conflict.
I can understand people who claim that anti-zionism is antisemitism, because at the most basic level, Zionism is merely the belief that Israel, the country, should exist, in that bit of land, and the land of Israel is a fundamental part of many Jewish people's identity.
I also would agree that there are people who use it as a figleaf for antisemitism.
I just wanted to illustrate to you that there's quite a lot more to many people's versions of zionism than just that, and that just saying "antizionism = antisemitism" is unhelpful, just as comparing Israelis to nazis is unhelpful. It shuts down debate.
Zionism was a fringe idea within the Jewish community until the late 19th-early 20th Century, and there are still many, many Jews who do not consider themselves to be zionists. Are they antisemitic?