The resurrection of Israel, especially after the Shoah, when more than Hitler and Germany were hoping for the "final solution to the Jewish Question", must have been a shock to the atheists and antisemites both real and latent, and to the rest of the world whose Christian populations believe they replaced the Jews as G-d's chosen 2000 years ago. The Arab states make little bones about how they feel about the Jewish State, which to their chagrin sits right in their very midst.
Antizionism, coming from those same groups, which seeks to eliminate the Jewish State, is therefore as much antisemitic as The Camps and Hitler's Final Solution.
The question now is: What do the proponents of Israel's destruction, either by bombing it out of existence or disassembling the State, intend to do with us -- the five million Jewish Israelis who live here and the five million Jews in the Diaspora?
We did not lay down and die or melt into surrounding populations and abandon Judaism ever before in history... we are not about to do so now.