Except he doesn't support one particular initiative coming from "those who are directly involved" – namely the DBS campaign. And this just happens to be the one initiative that North American activists like us should be getting behind in a big way.
So his "semantics" have real implications for the direction of the Palestinian solidarity movement, and should not be lightly dismissed as the quibblings of a linguist.
Sure. I noted that I disagreed with him on that, earlier.
But, there is another point to be made here. The context of Chomsky's position is based in his position within the discourse of US politics, Israel's number one military supporter. In that context and from that perspective: "What we ought to do is push for changes in US policy. Now it makes good sense to press for not sending attack helicopters to Israel, for example," might seem a whole lot more effective, since most real trade that Israel does is with the EU.
Let's not forget that Americans are in a position to influence the political discourse in a completely different manner, than the rest of us.