I don’t disagree with you at all that Israel has definitely fanned the flames of antisemitism, but having been on the receiving end from people who even like Israel (many evangelicals Christians want people like me forcibly exiled to Israel so Jesus can come back), it’s not just Israel.
People hate Jews for all sorts of reasons. A lot of evangelicals hate me because my ancestors apparently killed Jesus, even though it was the Romans, and that’s my fault. People like Elon Musk and his ilk hate me because I apparently control the banks and Hollywood. People like Nick Fuentes hate me because Hitler hated people like me and he loves Hitler. I’m sure some people hate me just because I’m slightly different from them.
And I don’t mean to restrict this to just Jews. What I saw happen to my Muslim brothers and sisters after 9/11 was disgusting, and even these days you have people essentially claiming all Muslims are terrorists. And both Jews and Muslims in America are essentially considered foreigners in our own country. I’m from Indiana, but that doesn’t matter even though I guarantee you that I have more in common with a Palestinian American born in Montana than either of us have with a Jew in Israel or a Muslim in Palestine.