Unfortunately, anti-Semitic statements have abounded in a lot of the "support" that the co-op has received in regard to the Israeli-products' boycott. This pamphlet (downloadable, or available for reading online) is a good primer on what anti-Semitism looks like, especially in relation to pro-Palestinian work, and how we can include work against Jewish oppression in our movements for justice and peace.
The Past Didn't Go Anywhere: Making Resistance to Antisemitism Part of all of our Movements