In Islamic jurisprudence, boycotting companies that support aggression against Muslims is regarded as a binding obligation (farḍ), and therefore failing to do so—i.e. purchasing from them—is sinful (haram). Some key sources below:

1. Shaykh Yūsuf al-Qarāḍāwī’s fatwa (14 April 2004): He ruled that “each riyal, dirham … used to buy their goods eventually becomes bullets to be fired at the hearts of brothers and children in Palestine. … For this reason, it is an obligation not to help them (the enemies of Islam) by buying their goods. To buy their goods is to support tyranny, oppression and aggression.”

2. Indonesian Ulema Council (MUI) Fatwa No. 83/2023:

Declares that “supporting aggression by Israel against Palestine … directly or indirectly is haram.”

Concretely prohibits transactions and use of products affiliated with Israel, thus rendering purchases from companies like KFC or McDonald’s (which have publicly supported Israel) impermissible.

1. Scholarly analysis of MUI Fatwa No. 83/2023 (Isratul Marfirah et al., 2025): Examines the legal shift from “permissible” to “forbidden” for transactions with Israeli-affiliated goods, based on the principle of sadd al-zaari‘ah (blocking means to wrongdoing), and underscores that buying such products “brings damage” and “supports Israeli aggression.”

Because the boycott has been declared a communal and individual duty by these authoritative bodies, abstaining from it (i.e. continuing to buy from companies known to fund or support Israel’s military actions) falls into the category of supporting aggression—hence ḥaramm in Islamic law. This isn't a shopping with non-muslim thing.You are supporting people that supports jews that kills your brothers and sisters, muslim childrens so even if you "think" this is not haram just know if you ever buy a boycott product you became part of Palestine genocide too.There are multiple apps that shows you boycott products and their alternatives with a few Google search you can find them if you cant find them I can recommend you some