This alliance seems to be turning about two billion people and dozens of muslim-majority nations against America, driving them towards alliances with countries like China. American taxpayer money is being heavily invested in Israel. We're talking about a staggering $260 billion given to Israel, seemingly without direct benefits to the U.S. Ethically, the U.S. is on shaky ground. By consistently supporting Israel, even in cases involving civilian casualties, the U.S. appears to be undermining international law and the United Nations, often standing alone against global consensus. Looking at the U.S. presidency, it seems like candidates from both major parties have to win the favor of the Israeli lobby to secure their nomination. Take Obama, for example. Despite his apparent disdain for Netanyahu – remember the leaked conversation with Sarkozy where they called Netanyahu a liar? – he still seemed unable to counter the lobby's influence. This focus on Israel is a massive distraction from more pressing issues, like the rise of China.
And let's be clear – Israel's loyalty as a Western ally is questionable. It's kept friendly ties with the Kremlin, hasn't joined in sanctioning Russia, and has turned down requests to send defensive weapons to Ukraine. It seems Israel would not hesitate to shift its allegiance to China if it suited its national interests.
It also doesn't hurt that any aid, is defense spending in the US which is a stimulus for jobs or manufacturing for defense.
Overall it's cheap expenditure for the US.
It is not at all. This funding is only occurring because of AIPAC and similar organizations including Christian groups who want to see the end times happen and supporting Israel is apparently important for that. Israel is not a counter balance to Russia at all. And Israel (specifically Netanyahu and AIPAC) undermined the Iran agreement that was going to see them stop their nuclear program.