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.
Also, "lobbying" is a boogeyman here. Americans support Israel for all sorts of reasons that have nothing to do with lobbying. Israel is a settler society, it's a country of immigrants, much like the US. Israel has a rule of law, it's a democracy, much like the US. Israel has long existed within a sea of hostile Arab nations, none of which are democracies (okay minus Lebanon, kind of) and none which particularly resemble of the US. People are starting to look at the Israelis as bullies today but for most of the 20th century, they were viewed as the underdog. And finally there's a religious element: Americans are fairly Christian and feel a fellowship with Jews and view Israel as a custodian of the Holy Land. As a result of these factors and more, there's a strong affinity between Americans and Israel.