How about demonstrably antisemitic? When the intentions of an antisemite can be demonstrated to be antisemitic, can we bring it up as an example of antisemitism?

When someone says that "Israel and its defenders have long used this rhetorical tactic [ to shield Israel from accountability]", does this preclude Israel and its defenders from legitimately commenting on antisemitism because... tactics?

And if most of the world's Jews are presumed to have an ulterior motive when speaking about antisemitim, who is left to comment on antisemitism? Peter Beinart?

The statement is saying, quite literally, that the validity of my judgements on the subject of antisemitism, as well as that of others falling into the category of "Israel and their supporters", doesn't count and is proactively being condemned as being nefarious based exclusively on my affiliation with a certain group, not the strength of my argument.

So while they have no authority to prevent me from making my judgement, they are saying I cannot express my judgement without being accused of foul play, except when it gets their stamp of approval.

What they are probably not counting on is that I couldn't care less about their claim to any kind of an authority on the subject of antisemitism. And neither "Israel and its supporters".

In the first paragraph of the statement, "Israel and its defenders", which by definition includes the vast majority of potential victims of antisemitism, are summarily accused of spreading the "narrative that any criticism of Israel is inherently antisemitic" and are preemptively judged guilty of all the sins listed in the following sentence. No Ifs, ands or buts about it.

Sounds pretty inclusive to me, and deliberately so. Being professional writers, the group cannot claim that their choice of words is unintentional.

of view (depending on who gets to define "liberal" ), as it is from the point of view of antisemitism.

And people (including Jews on rare occasions) have been know to hold antisemitic views regardless of how high their social profile is.