If you make a general search antisemitism and labour and highlight news then you will see both UK and international newspapers are discussing the topic.
To pretend it is a made up story, or that it lacks substance, or to explain it as a ruse to undermine Corbyn is simply avoiding reality.
The pontifications of a minority on an obscure website cannot alter the fact that Labour has a well documented problem with antisemitism.
If it was not a problem it would not be grabbing headlines worldwide
from Al Jazeera to the Wall Street Journal. That is a fact!