There are antisemitics all throughout the political spectrum, but ‘the left’ will tag ‘the alt-right’ as “ALL” antisemitic - discrediting all of the alt-right (watch- Hillary will most assuredly do that Thurs)
There are far more antisemitic on the left throughout the world.
Alt-right is unabashedly racial. That this bothers you shows you are not alt-right. Watch how they respond to Hillary’s speech. They won’t deny. They will “agree and amplify.”