Perhaps agreeing on the meaning of some terms can help clarify where we all stand. It seems to me that opposition to things the Israeli government is doing or has done is in no way either anti-Semitic or anti-Zionism. I believe there are significant numbers of Jews, both in Israel and abroad have disagreements with the Israeli government's actions and policies.
If Zionists are by definition those who advocate for the right of Israel to exist (see
http://tigerboard.com/boards/view.php?message=16645895 ), then anti-Zionism would be a rejection of the idea that Israel has a right to exist, no?
Definitions:
anti-Zionist:
anti-Semite:
https://www.merriam-webster.com/dictionary/anti-Semite
: a person who has a hostile, prejudiced attitude toward Jews : an anti-Semitic person
anti-Semitic:
https://www.merriam-webster.com/dictionary/anti-Semitic
: relating to or characterized by anti-Semitism : feeling or showing hostility toward or discrimination against Jews as a cultural, racial, or ethnic group
anti-Zionism:
https://www.merriam-webster.com/dictionary/anti-zionist
: opposition to the establishment or support of the state of Israel : opposition to Zionism