Not entirely. I think you can interact with people doing what Sartre describes, and do so in a way that other people can see what is going on - can see the phoniness and gamesmanship of the anti-Semite.

You're not going to persuade people who are playing that game. They're just going to keep playing the game, and enjoy the fact that they're "winning" (in their own terms). But I think you can make it so that they lose in the battle for hearts and minds.