As far as I know NKVD did not massacred Jews. A few dozens arrests and closed elite universities does not really compare to tragedies of other nations (hint: I am Polish).
Anti-zionism is not antisemitism.
Anti-zionism is not antisemitism.
Anti-Zionism is not antisemitism, but when Anti-Zionist rhetoric is used to condemn anyone with Jewish names, that sounds pretty antisemitic to me.