I suspect that she means that Israel should be able to kill Palestinian families if they want to, and anyone who says otherwise is an enemy. Of course, she can't say that specifically, so she has to toss up strawmans about supporting Hamas's war crimes, or just say she "disagrees" without being specific.

I think that was in reference to her initial question that he has said that Israel doesn't have the right to exist as a Jewish state, or refused to affirm that.