This is a great example of the prejudice (pre-judging) at play when it comes to Israel. One starts with the conclusion ("Israel/Jews are evil and controlling the government with money") then works backwards to build an argument.

"They are spending so much, that's why they control the government!" They (American citizens funding AIPAC) actually spending much less than many other lobbying groups. "Aha- they're so conniving they can control the government even without being in the top 10 lobbies!"

There's no winning against this "logic" because the conclusion has been decided ahead of time & any evidence is interpreted as supporting that conclusion, no matter which way it goes.