They have to (and rightly so) acknowledge any incidents of anti-Semitism in the party, and treat them seriously, and should be respectful to the Jewish community given the sensitivities of Jews given their history. This is all what one would expect from a political party committed to countering racism and bigotry.
But there's no more anti-Semitism within Labour than society in general, and the other political parties, according to polling data.
Thus the notion that it is a scandal within Labour is false. It is a fabricated scandal. A politically-motivated, fabricated scandal.