She gets intelligence briefings and does not interact with normal people. So I’m sure that genuinely colors her perception of reality on this matter. Plus she’s old and has never lived in a time where Americans oppose Israel to this extent - so of course she thinks it’s all astroturfed rather than being genuine

Doesn’t excuse her behavior, obviously. But there is a plausible explanation for it aside from her being evil (which she is, but other factors are also at play here)