It's pretty impressive that you're posting on a political forum yet can't make the very rudimentary distinction between discrimination based on ethnicity and opposition to the political actions of a sovereign country.
The left is more hostile to Israel, yes. That you conflate that with antisemitism shows a wholehearted embrace of the reductive identity politics that conservatives claim to hate. Of course, in reality, prejudice against persons with Jewish background is still very much a conservative/right wing value. Hence why, despite the left being more critical of Israel, American Jews overwhelmingly vote Democrat.