It's not just anti-Jewish sentiment that has been stirred up by the Israeli products boycott - Islamophobia and Anti-Arab bigotry has appeared again and again in letters and online comments against the boycott.
Many thanks to the co-op member who pointed me to the CAIR (Council on American-Islamic Relations) website. Check out their Islamophobia page.
Also take a look at the Arab American Institute Foundation's Notes on Anti-Arab Racism.