The US does not have friends, it has 'interests'
Israel is funded because of the heavy Christian Zionism lobby- who by the way are anti semitic and do not care about Jews at all. Baffles me that some don't see this. Marjorie Taylor Greene,known for being an anti semitic far right nut job, is supporting Israel (govt). Trust me, sadly they don't care about Jewish safety. They are islamaphobic simple as. They do not care who is there in the geography so long as the Arabs don't get too much power. The region is of major interest for the US so they treat Israel as an outpost. A military outpost that is an extension of them. Location location location
The Far Right in Europe have had a long shameful history with antisemitism and yet they are the biggest supporters of Zionism. Make that make sense?
Of course they'll sell you the dream that they love the Jewish people, which is BS. They don't care. Or that they're liberating somebody from something; which is also bull.
You go back far enough when we had 2 major chess players (superpowers) in the political landscape, you'll read that the Soviets had a long standing relationship with the Middle East. The Americans were terrified that communism was going to spread to the ME as a result. And since the Arabs were lapping up the idea of an Arab union, and that they saw Islam had many ' socialist' aspects that they were intrigued by the soviets, this freaked the Americans out.
So, by destroying any chance of Arabs uniting; through economic destabilisation, overthrowing republics in the region, and placing 'pro US interest' puppets instead, and along with other Western powers, facilitating the rise of certain royal families (The Saud family/ Hashemite family) the Arabs turned against each other and if they didn't they were desperate enough to claim funds from the West.
The Americans also funded regimes in Africa, don't forget, and gave plenty of Aid to countries branded as ' helping levelling up and moral duty' but it was a veil to ensure that the biggest threat to them, communism, does not spread. Further, you keep populations desperate enough, then breadcrumb them occasionally, they'll maintain the status quo.
Israel is the The Queen in a game of Chess that the US is still playing.