"I don't think they want to hurt the USA, but I do think they would support an opponent of a politician that had been "heard" expressing a lack of interest in financial and military support for Israel."

Probably this. And they likely act with their friendly party in the know. "Feel free to keep an eye on your wife using my car when I'm away. But if she or anyone else catches you, I won't know who you are and will report a stolen car".