Both sects accuse millions of Jews, among them numerous Torah scholars, of being unwitting (!) idolaters and heretics, but only one of these is treated with unconcealed scorn – and I don’t mean the anti-Zionists.
Why the difference?
Here’s my theory:
The anti-Zionists are not all wrong; they are right about many of their specific examples regarding the state (although anti-Zionists are inconsistent relating to other States). Since their opponents don’t wish to open that can of worms, they largely ignore them, instead.