That's not what I'm suggesting exactly.
I'm speculating that, in some places, the kind of people who hate Jews are the very same people who hate Muslims. I imagine the idea of stirring up troubled between them might seem a very neat idea indeed.
I'm not denying that there are people whose hatred of Zionism has been the seed of hatred of Jews as such, and, just as you have people whose reaction to "Islamic terrorism" has been translated into hatred of Muslims. But I think generalised racists who like the idea of stirring up trouble between the various people they hate may well have be involved.