It looks like this kind of boycott hypocrisy has been around for a while.
I found this article about how Arabs who pretended to be following the anti-Jewish boycott, and even boycott leaders, would use Jewish products when it made their lives easier.
Just like today.
From the Chicago Tribune, October 15, 1946.
ARABS CONNIVE WITH JEWS AND EVADE BOYCOTTZionist Products Given Moslem LabelsBY CLAY GOWRAN [Chicago Tribune Press Service]JERUSALEM. Palestine, Oct. 14— Since last December, top ranking leaders of the Arab world have been attempting to enforce a rigid boycott of Palestinian Jewish products in the Moslem states as a protest against Zionism. Amusing details of how the boycott works, or rather fails to work, were revealed today in the Holy City.As conceived by the Arab League, the boycott was designed to close the entire middle east Arab world to Jewish goods. All Arab nations passed stringent measures forbidding the importation of Jewish products. then sat back to wait for the Jewish economy in Palestine to topple.However, due to the zeal of Arab merchants to carry on business, plus a similar frame of mind among Palestinian Jewish businessmen, it did not work out that way.New sport: Beat BoycottBoycott evasions became a high priority sport throughout the middle east. Take chocolate, for instance.Three large, Jewish owned factories in and near Tel Aviv probably produce more of this delicacy than any other concerns in this part of the world. One of the chocolate firms' best customers is an Arab owned candy company in Palestine. which buys huge quantities of the sweet, re-wraps the bars in folders bearing Arabic labels, then sells it either to Palestinian Arab shops or exports it to Arab countries as a Moslem product.Trade in aluminum kitchen utensils operates the same way. Products of Palestinian Jewish factories, the utensils are purchased wholesale by Arab dealers, fitted with labels stating they were made either in Arab factories or in England, then sold here or exported to Arab league nations.Jews Even Make LabelsThe zany point is that even the phony labels with which the chocolate and utensils are tagged are products of Jewish owned print shops, according to experts here.In recent weeks, the whole world heard much about the Nejada, so-called militant Arab Boy Scout movement of Palestine, which in reality is the closest facsimile of an army which the Palestinian Arabs possess. However, the world to date has not heard this about the Nejada—that the copper badges sported by its members. which bear the slogan. "Arab lands for Arabs," are products of a Jewish factory in Jerusalem.Blowing Hot and ColdOne of the best boycott anecdotes, printed in local Jewish papers, occurred three weeks ago in Haifa. An Arab bought a bugle in a Jewish owned music store. The next day when the owner of the shop was sitting in front of his store, an Arab parade passed by. The purpose of the parade was to advertise the Moslem boycott. Playing a bugle in the front row of the band was his customer of the day before.Arab owned weekly papers of Jerusalem and other Palestinian cities print lurid cartoons urging Moslems to stand by the boycott and picturing grim dangers if they fail to do so. Because there is no Arab plant in the Holy Land equipped to prepare such line drawn cartoons for newspaper reproduction plates, they are let out under contract to a Jewish owned engraving concerns
