Israel spent $23.4b on it's military vs $3.3b from the US. And the Israeli economy is $522B making the US "funding of Israel" 0.6% of their economy.
That's hardly "funded by the US government". And on top of that the US is "funding" Israel in return for technology, so it's more a purchase by the US than anything else.
>The U.S.-Israel economic and commercial relationship is strong, anchored by an annual bilateral trade of nearly $50 billion in goods and services. Several treaties and agreements, including the 1985 U.S.-Israel Free Trade Agreement (FTA), solidify bilateral economic relations. Since the FTA’s signing in 1985, the United States has become Israel’s largest trading partner.
I think it's fair to say that the US has strong connections to Israel. I don't know if it's fair to imply it's totally dependent on the US as they implied, but I think it's more complex than the aid being a small percentage of the GDP.
So you need to take into account what the US would lose. It's far more complex than your shallow "cry and scream".