Remember that: It was President Obama who did the JCPOA against bitter opposition from the Saudis and the Israelis. Watch the press from those years. It took about 2.5 years of bitter negotiations and opposition to reach the JCPOA.
The American interests in the Middle East don't totally align with Netanyahu's vision.
BTW, sorry to say this: Posts like yours betray extremely lazy, uninformed understanding of the American political system. During the Gaza war, 19 out of about 50 Democratic Senators voted to block arms sales to Israel. Just a few days ago, 38 of those Senators voted to block the arm sales.
America is an evolving, democratic system despite all its flaws. Work with what you can work with. At least see how the Jewish community works in a concerted way and it is not all about the money--they are very smart in electoral politics.