Muslims routinely by things produced by Jews, Hindus, and others. Muslims even buy Kosher products all the time because Quran allows Muslims to do that. Muslims are very open minded consumers. What is wrong is the deception of the identity. Muslim consumer should refuse to be fooled by such deceptions.
Muslim consumer has a right to know the facts.
Let the facts be known. It is not a matter of bigotry. It is a matter of trust and comfort level. Halal is the identity of Muslims and Kosher is the identity of the Jews. Let each group keep their respective identities protected and catered by their own people and businesses.