It wasn't an article, it was research undertaken by the World Jewish Congress, who's aim is to act as "the diplomatic arm of the Jewish people". I posted this to respond to your ludicrous suggestion that anti-semitism was solely a left-wing phenomena.
As I replied to BKK Brian, there is most probably an increase in the level of anti-semitism originating from hard left organisations, but those 90% of hard right bigots in 2016 haven't gone away; they haven't stopped recruiting; they haven't stopped their hatred. The BNP, EDL, UKIP still exists, and where the far right has a home, as is shown time and again, racists are welcome.