There are now people who cannot assess Islam becuae they are haunted by the possibility that somehow, somewhere along the line, Israel has infiltrated their thinking on it.
And there are also people who are unable or refuse to distinguish between the various ways military and police action can cause death. It's all "murder" or "genocide" because, apparently, it can all be traced back to someone's action.
All this is due to the indulgence of Free Palestine, which requires abandoning all critical canons of judging the responsibilities of militaries at war. Asking about things like combatant/civilian death ratio or actions taken to minimize civilian casualties would have interfered.
All this, far more than anything as simple as "antisemitism," is what Carlson is injecting into the system. It's a way of thinking designed and operating so as to directly subvert all of the administration's intiatives and priorities. If "Fake News" from, e.g., NBC, can be
countered, so can this. And Vance would be the ideal person to do so.