Antisemitism was always there. The problem of palestinians is embedded into it, because Antisemites count on the continued suffering of the palestinians. They want dying palestinian children they can blame on Israel, and with the palestinian children dying you can see their eyes brighten up these days. Because now they can go rampant with their undifferentiated hatred against all Israel and all Jews.
But that’s consistent. Palestines are Semites, too, after all. Just don’t try to hide your hatred behind “concern”.