Anti-Semitic, no. Screwballs, yes. And not just because they are anti-Zionist. Nor are they "typical" Orthodox.
Visit their website, you'll see what I mean.
Perhaps they're more sane that you -- or Veronica -- give them credit.
I'll keep reading. Thanks for the reminder to check out their site for myself.
I'd say they are the Jewish Taliban. I am Orthodox and have spent a lot of time in Meah Shearim (one of the neighborhoods in Jerusalem where "Neturei Karta" hang out.) A family member got into a conversation with one of them, and was told that it is a sin to support the Zionist government in any way, shape or form. My relative asked the NK guy if he had any cash, could he change a 50-shekel bill? The NK guy said, "sure!" and whipped out a wad of "Herzls". So my relative said, Zayer medinah is nit kosher ober zayere gelt yoh? (The Jewish State isn't kosher but you take their money?????)
The "Neturei Karta" will never, ever join the secular Israeli leftists in their demonstrations, because they hate each other's guts, but suf kol suf (bottom line) they are opposite sides of the same phony coin. They and the secular leftists are both driven by the same poisonous hatred of their fellow Jews--each other--to the point they would prefer to see Israel destroyed.
The Talmud says, The Holy Temple was destroyed because of causeless hatred and I think the "Neturei Karta" and their mirror images on the left are a perfect illustration of this.